diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile
new file mode 100644
index 0000000..b8ab186
--- /dev/null
+++ b/drivers/s390/crypto/Makefile
@@ -0,0 +1,11 @@
+#
+# S/390 crypto devices
+#
+
+ap-objs := ap_bus.o
+# zcrypt_api depends on ap
+obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o
+# msgtype* depend on zcrypt_api
+obj-$(CONFIG_ZCRYPT) += zcrypt_msgtype6.o zcrypt_msgtype50.o
+# adapter drivers depend on ap, zcrypt_api and msgtype*
+obj-$(CONFIG_ZCRYPT) += zcrypt_pcixcc.o zcrypt_cex2a.o zcrypt_cex4.o
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
new file mode 100644
index 0000000..7c3b8d3
--- /dev/null
+++ b/drivers/s390/crypto/ap_bus.c
@@ -0,0 +1,1869 @@
+/*
+ * Copyright IBM Corp. 2006, 2012
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *	      Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *	      Felix Beck <felix.beck@de.ibm.com>
+ *	      Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * Adjunct processor bus.
+ *
+ * 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.
+ */
+
+#define KMSG_COMPONENT "ap"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/notifier.h>
+#include <linux/kthread.h>
+#include <linux/mutex.h>
+#include <linux/suspend.h>
+#include <asm/reset.h>
+#include <asm/airq.h>
+#include <linux/atomic.h>
+#include <asm/isc.h>
+#include <linux/hrtimer.h>
+#include <linux/ktime.h>
+#include <asm/facility.h>
+#include <linux/crypto.h>
+
+#include "ap_bus.h"
+
+/*
+ * Module description.
+ */
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Adjunct Processor Bus driver, " \
+		   "Copyright IBM Corp. 2006, 2012");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("z90crypt");
+
+/*
+ * Module parameter
+ */
+int ap_domain_index = -1;	/* Adjunct Processor Domain Index */
+module_param_named(domain, ap_domain_index, int, S_IRUSR|S_IRGRP);
+MODULE_PARM_DESC(domain, "domain index for ap devices");
+EXPORT_SYMBOL(ap_domain_index);
+
+static int ap_thread_flag = 0;
+module_param_named(poll_thread, ap_thread_flag, int, S_IRUSR|S_IRGRP);
+MODULE_PARM_DESC(poll_thread, "Turn on/off poll thread, default is 0 (off).");
+
+static struct device *ap_root_device = NULL;
+static struct ap_config_info *ap_configuration;
+static DEFINE_SPINLOCK(ap_device_list_lock);
+static LIST_HEAD(ap_device_list);
+static bool initialised;
+
+/*
+ * Workqueue timer for bus rescan.
+ */
+static struct timer_list ap_config_timer;
+static int ap_config_time = AP_CONFIG_TIME;
+static void ap_scan_bus(struct work_struct *);
+static DECLARE_WORK(ap_scan_work, ap_scan_bus);
+
+/*
+ * Tasklet & timer for AP request polling and interrupts
+ */
+static void ap_tasklet_fn(unsigned long);
+static DECLARE_TASKLET(ap_tasklet, ap_tasklet_fn, 0);
+static atomic_t ap_poll_requests = ATOMIC_INIT(0);
+static DECLARE_WAIT_QUEUE_HEAD(ap_poll_wait);
+static struct task_struct *ap_poll_kthread = NULL;
+static DEFINE_MUTEX(ap_poll_thread_mutex);
+static DEFINE_SPINLOCK(ap_poll_timer_lock);
+static struct hrtimer ap_poll_timer;
+/* In LPAR poll with 4kHz frequency. Poll every 250000 nanoseconds.
+ * If z/VM change to 1500000 nanoseconds to adjust to z/VM polling.*/
+static unsigned long long poll_timeout = 250000;
+
+/* Suspend flag */
+static int ap_suspend_flag;
+/* Maximum domain id */
+static int ap_max_domain_id;
+/* Flag to check if domain was set through module parameter domain=. This is
+ * important when supsend and resume is done in a z/VM environment where the
+ * domain might change. */
+static int user_set_domain = 0;
+static struct bus_type ap_bus_type;
+
+/* Adapter interrupt definitions */
+static void ap_interrupt_handler(struct airq_struct *airq);
+
+static int ap_airq_flag;
+
+static struct airq_struct ap_airq = {
+	.handler = ap_interrupt_handler,
+	.isc = AP_ISC,
+};
+
+/**
+ * ap_using_interrupts() - Returns non-zero if interrupt support is
+ * available.
+ */
+static inline int ap_using_interrupts(void)
+{
+	return ap_airq_flag;
+}
+
+/**
+ * ap_intructions_available() - Test if AP instructions are available.
+ *
+ * Returns 0 if the AP instructions are installed.
+ */
+static inline int ap_instructions_available(void)
+{
+	register unsigned long reg0 asm ("0") = AP_MKQID(0,0);
+	register unsigned long reg1 asm ("1") = -ENODEV;
+	register unsigned long reg2 asm ("2") = 0UL;
+
+	asm volatile(
+		"   .long 0xb2af0000\n"		/* PQAP(TAPQ) */
+		"0: la    %1,0\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (reg0), "+d" (reg1), "+d" (reg2) : : "cc" );
+	return reg1;
+}
+
+/**
+ * ap_interrupts_available(): Test if AP interrupts are available.
+ *
+ * Returns 1 if AP interrupts are available.
+ */
+static int ap_interrupts_available(void)
+{
+	return test_facility(65);
+}
+
+/**
+ * ap_configuration_available(): Test if AP configuration
+ * information is available.
+ *
+ * Returns 1 if AP configuration information is available.
+ */
+static int ap_configuration_available(void)
+{
+	return test_facility(12);
+}
+
+/**
+ * ap_test_queue(): Test adjunct processor queue.
+ * @qid: The AP queue number
+ * @info: Pointer to queue descriptor
+ *
+ * Returns AP queue status structure.
+ */
+static inline struct ap_queue_status
+ap_test_queue(ap_qid_t qid, unsigned long *info)
+{
+	register unsigned long reg0 asm ("0") = qid;
+	register struct ap_queue_status reg1 asm ("1");
+	register unsigned long reg2 asm ("2") = 0UL;
+
+	if (test_facility(15))
+		reg0 |= 1UL << 23;		/* set APFT T bit*/
+	asm volatile(".long 0xb2af0000"		/* PQAP(TAPQ) */
+		     : "+d" (reg0), "=d" (reg1), "+d" (reg2) : : "cc");
+	if (info)
+		*info = reg2;
+	return reg1;
+}
+
+/**
+ * ap_reset_queue(): Reset adjunct processor queue.
+ * @qid: The AP queue number
+ *
+ * Returns AP queue status structure.
+ */
+static inline struct ap_queue_status ap_reset_queue(ap_qid_t qid)
+{
+	register unsigned long reg0 asm ("0") = qid | 0x01000000UL;
+	register struct ap_queue_status reg1 asm ("1");
+	register unsigned long reg2 asm ("2") = 0UL;
+
+	asm volatile(
+		".long 0xb2af0000"		/* PQAP(RAPQ) */
+		: "+d" (reg0), "=d" (reg1), "+d" (reg2) : : "cc");
+	return reg1;
+}
+
+/**
+ * ap_queue_interruption_control(): Enable interruption for a specific AP.
+ * @qid: The AP queue number
+ * @ind: The notification indicator byte
+ *
+ * Returns AP queue status.
+ */
+static inline struct ap_queue_status
+ap_queue_interruption_control(ap_qid_t qid, void *ind)
+{
+	register unsigned long reg0 asm ("0") = qid | 0x03000000UL;
+	register unsigned long reg1_in asm ("1") = 0x0000800000000000UL | AP_ISC;
+	register struct ap_queue_status reg1_out asm ("1");
+	register void *reg2 asm ("2") = ind;
+	asm volatile(
+		".long 0xb2af0000"		/* PQAP(AQIC) */
+		: "+d" (reg0), "+d" (reg1_in), "=d" (reg1_out), "+d" (reg2)
+		:
+		: "cc" );
+	return reg1_out;
+}
+
+/**
+ * ap_query_configuration(): Get AP configuration data
+ *
+ * Returns 0 on success, or -EOPNOTSUPP.
+ */
+static inline int ap_query_configuration(void)
+{
+	register unsigned long reg0 asm ("0") = 0x04000000UL;
+	register unsigned long reg1 asm ("1") = -EINVAL;
+	register void *reg2 asm ("2") = (void *) ap_configuration;
+
+	if (!ap_configuration)
+		return -EOPNOTSUPP;
+	asm volatile(
+		".long 0xb2af0000\n"		/* PQAP(QCI) */
+		"0: la    %1,0\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (reg0), "+d" (reg1), "+d" (reg2)
+		:
+		: "cc");
+
+	return reg1;
+}
+
+/**
+ * ap_init_configuration(): Allocate and query configuration array.
+ */
+static void ap_init_configuration(void)
+{
+	if (!ap_configuration_available())
+		return;
+
+	ap_configuration = kzalloc(sizeof(*ap_configuration), GFP_KERNEL);
+	if (!ap_configuration)
+		return;
+	if (ap_query_configuration() != 0) {
+		kfree(ap_configuration);
+		ap_configuration = NULL;
+		return;
+	}
+}
+
+/*
+ * ap_test_config(): helper function to extract the nrth bit
+ *		     within the unsigned int array field.
+ */
+static inline int ap_test_config(unsigned int *field, unsigned int nr)
+{
+	return ap_test_bit((field + (nr >> 5)), (nr & 0x1f));
+}
+
+/*
+ * ap_test_config_card_id(): Test, whether an AP card ID is configured.
+ * @id AP card ID
+ *
+ * Returns 0 if the card is not configured
+ *	   1 if the card is configured or
+ *	     if the configuration information is not available
+ */
+static inline int ap_test_config_card_id(unsigned int id)
+{
+	if (!ap_configuration)	/* QCI not supported */
+		return 1;
+	return ap_test_config(ap_configuration->apm, id);
+}
+
+/*
+ * ap_test_config_domain(): Test, whether an AP usage domain is configured.
+ * @domain AP usage domain ID
+ *
+ * Returns 0 if the usage domain is not configured
+ *	   1 if the usage domain is configured or
+ *	     if the configuration information is not available
+ */
+static inline int ap_test_config_domain(unsigned int domain)
+{
+	if (!ap_configuration)	/* QCI not supported */
+		return domain < 16;
+	return ap_test_config(ap_configuration->aqm, domain);
+}
+
+/**
+ * ap_queue_enable_interruption(): Enable interruption on an AP.
+ * @qid: The AP queue number
+ * @ind: the notification indicator byte
+ *
+ * Enables interruption on AP queue via ap_queue_interruption_control(). Based
+ * on the return value it waits a while and tests the AP queue if interrupts
+ * have been switched on using ap_test_queue().
+ */
+static int ap_queue_enable_interruption(struct ap_device *ap_dev, void *ind)
+{
+	struct ap_queue_status status;
+
+	status = ap_queue_interruption_control(ap_dev->qid, ind);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+	case AP_RESPONSE_OTHERWISE_CHANGED:
+		return 0;
+	case AP_RESPONSE_Q_NOT_AVAIL:
+	case AP_RESPONSE_DECONFIGURED:
+	case AP_RESPONSE_CHECKSTOPPED:
+	case AP_RESPONSE_INVALID_ADDRESS:
+		pr_err("Registering adapter interrupts for AP %d failed\n",
+		       AP_QID_DEVICE(ap_dev->qid));
+		return -EOPNOTSUPP;
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+	case AP_RESPONSE_BUSY:
+	default:
+		return -EBUSY;
+	}
+}
+
+/**
+ * __ap_send(): Send message to adjunct processor queue.
+ * @qid: The AP queue number
+ * @psmid: The program supplied message identifier
+ * @msg: The message text
+ * @length: The message length
+ * @special: Special Bit
+ *
+ * Returns AP queue status structure.
+ * Condition code 1 on NQAP can't happen because the L bit is 1.
+ * Condition code 2 on NQAP also means the send is incomplete,
+ * because a segment boundary was reached. The NQAP is repeated.
+ */
+static inline struct ap_queue_status
+__ap_send(ap_qid_t qid, unsigned long long psmid, void *msg, size_t length,
+	  unsigned int special)
+{
+	typedef struct { char _[length]; } msgblock;
+	register unsigned long reg0 asm ("0") = qid | 0x40000000UL;
+	register struct ap_queue_status reg1 asm ("1");
+	register unsigned long reg2 asm ("2") = (unsigned long) msg;
+	register unsigned long reg3 asm ("3") = (unsigned long) length;
+	register unsigned long reg4 asm ("4") = (unsigned int) (psmid >> 32);
+	register unsigned long reg5 asm ("5") = psmid & 0xffffffff;
+
+	if (special == 1)
+		reg0 |= 0x400000UL;
+
+	asm volatile (
+		"0: .long 0xb2ad0042\n"		/* NQAP */
+		"   brc   2,0b"
+		: "+d" (reg0), "=d" (reg1), "+d" (reg2), "+d" (reg3)
+		: "d" (reg4), "d" (reg5), "m" (*(msgblock *) msg)
+		: "cc" );
+	return reg1;
+}
+
+int ap_send(ap_qid_t qid, unsigned long long psmid, void *msg, size_t length)
+{
+	struct ap_queue_status status;
+
+	status = __ap_send(qid, psmid, msg, length, 0);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		return 0;
+	case AP_RESPONSE_Q_FULL:
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+		return -EBUSY;
+	case AP_RESPONSE_REQ_FAC_NOT_INST:
+		return -EINVAL;
+	default:	/* Device is gone. */
+		return -ENODEV;
+	}
+}
+EXPORT_SYMBOL(ap_send);
+
+/**
+ * __ap_recv(): Receive message from adjunct processor queue.
+ * @qid: The AP queue number
+ * @psmid: Pointer to program supplied message identifier
+ * @msg: The message text
+ * @length: The message length
+ *
+ * Returns AP queue status structure.
+ * Condition code 1 on DQAP means the receive has taken place
+ * but only partially.	The response is incomplete, hence the
+ * DQAP is repeated.
+ * Condition code 2 on DQAP also means the receive is incomplete,
+ * this time because a segment boundary was reached. Again, the
+ * DQAP is repeated.
+ * Note that gpr2 is used by the DQAP instruction to keep track of
+ * any 'residual' length, in case the instruction gets interrupted.
+ * Hence it gets zeroed before the instruction.
+ */
+static inline struct ap_queue_status
+__ap_recv(ap_qid_t qid, unsigned long long *psmid, void *msg, size_t length)
+{
+	typedef struct { char _[length]; } msgblock;
+	register unsigned long reg0 asm("0") = qid | 0x80000000UL;
+	register struct ap_queue_status reg1 asm ("1");
+	register unsigned long reg2 asm("2") = 0UL;
+	register unsigned long reg4 asm("4") = (unsigned long) msg;
+	register unsigned long reg5 asm("5") = (unsigned long) length;
+	register unsigned long reg6 asm("6") = 0UL;
+	register unsigned long reg7 asm("7") = 0UL;
+
+
+	asm volatile(
+		"0: .long 0xb2ae0064\n"		/* DQAP */
+		"   brc   6,0b\n"
+		: "+d" (reg0), "=d" (reg1), "+d" (reg2),
+		"+d" (reg4), "+d" (reg5), "+d" (reg6), "+d" (reg7),
+		"=m" (*(msgblock *) msg) : : "cc" );
+	*psmid = (((unsigned long long) reg6) << 32) + reg7;
+	return reg1;
+}
+
+int ap_recv(ap_qid_t qid, unsigned long long *psmid, void *msg, size_t length)
+{
+	struct ap_queue_status status;
+
+	status = __ap_recv(qid, psmid, msg, length);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		return 0;
+	case AP_RESPONSE_NO_PENDING_REPLY:
+		if (status.queue_empty)
+			return -ENOENT;
+		return -EBUSY;
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+		return -EBUSY;
+	default:
+		return -ENODEV;
+	}
+}
+EXPORT_SYMBOL(ap_recv);
+
+/**
+ * ap_query_queue(): Check if an AP queue is available.
+ * @qid: The AP queue number
+ * @queue_depth: Pointer to queue depth value
+ * @device_type: Pointer to device type value
+ * @facilities: Pointer to facility indicator
+ */
+static int ap_query_queue(ap_qid_t qid, int *queue_depth, int *device_type,
+			  unsigned int *facilities)
+{
+	struct ap_queue_status status;
+	unsigned long info;
+	int nd;
+
+	if (!ap_test_config_card_id(AP_QID_DEVICE(qid)))
+		return -ENODEV;
+
+	status = ap_test_queue(qid, &info);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		*queue_depth = (int)(info & 0xff);
+		*device_type = (int)((info >> 24) & 0xff);
+		*facilities = (unsigned int)(info >> 32);
+		/* Update maximum domain id */
+		nd = (info >> 16) & 0xff;
+		if ((info & (1UL << 57)) && nd > 0)
+			ap_max_domain_id = nd;
+		return 0;
+	case AP_RESPONSE_Q_NOT_AVAIL:
+	case AP_RESPONSE_DECONFIGURED:
+	case AP_RESPONSE_CHECKSTOPPED:
+	case AP_RESPONSE_INVALID_ADDRESS:
+		return -ENODEV;
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+	case AP_RESPONSE_OTHERWISE_CHANGED:
+	case AP_RESPONSE_BUSY:
+		return -EBUSY;
+	default:
+		BUG();
+	}
+}
+
+/* State machine definitions and helpers */
+
+static void ap_sm_wait(enum ap_wait wait)
+{
+	ktime_t hr_time;
+
+	switch (wait) {
+	case AP_WAIT_AGAIN:
+	case AP_WAIT_INTERRUPT:
+		if (ap_using_interrupts())
+			break;
+		if (ap_poll_kthread) {
+			wake_up(&ap_poll_wait);
+			break;
+		}
+		/* Fall through */
+	case AP_WAIT_TIMEOUT:
+		spin_lock_bh(&ap_poll_timer_lock);
+		if (!hrtimer_is_queued(&ap_poll_timer)) {
+			hr_time = ktime_set(0, poll_timeout);
+			hrtimer_forward_now(&ap_poll_timer, hr_time);
+			hrtimer_restart(&ap_poll_timer);
+		}
+		spin_unlock_bh(&ap_poll_timer_lock);
+		break;
+	case AP_WAIT_NONE:
+	default:
+		break;
+	}
+}
+
+static enum ap_wait ap_sm_nop(struct ap_device *ap_dev)
+{
+	return AP_WAIT_NONE;
+}
+
+/**
+ * ap_sm_recv(): Receive pending reply messages from an AP device but do
+ *	not change the state of the device.
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_WAIT_NONE, AP_WAIT_AGAIN, or AP_WAIT_INTERRUPT
+ */
+static struct ap_queue_status ap_sm_recv(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+	struct ap_message *ap_msg;
+
+	status = __ap_recv(ap_dev->qid, &ap_dev->reply->psmid,
+			   ap_dev->reply->message, ap_dev->reply->length);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		atomic_dec(&ap_poll_requests);
+		ap_dev->queue_count--;
+		if (ap_dev->queue_count > 0)
+			mod_timer(&ap_dev->timeout,
+				  jiffies + ap_dev->drv->request_timeout);
+		list_for_each_entry(ap_msg, &ap_dev->pendingq, list) {
+			if (ap_msg->psmid != ap_dev->reply->psmid)
+				continue;
+			list_del_init(&ap_msg->list);
+			ap_dev->pendingq_count--;
+			ap_msg->receive(ap_dev, ap_msg, ap_dev->reply);
+			break;
+		}
+	case AP_RESPONSE_NO_PENDING_REPLY:
+		if (!status.queue_empty || ap_dev->queue_count <= 0)
+			break;
+		/* The card shouldn't forget requests but who knows. */
+		atomic_sub(ap_dev->queue_count, &ap_poll_requests);
+		ap_dev->queue_count = 0;
+		list_splice_init(&ap_dev->pendingq, &ap_dev->requestq);
+		ap_dev->requestq_count += ap_dev->pendingq_count;
+		ap_dev->pendingq_count = 0;
+		break;
+	default:
+		break;
+	}
+	return status;
+}
+
+/**
+ * ap_sm_read(): Receive pending reply messages from an AP device.
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_WAIT_NONE, AP_WAIT_AGAIN, or AP_WAIT_INTERRUPT
+ */
+static enum ap_wait ap_sm_read(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+
+	status = ap_sm_recv(ap_dev);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		if (ap_dev->queue_count > 0) {
+			ap_dev->state = AP_STATE_WORKING;
+			return AP_WAIT_AGAIN;
+		}
+		ap_dev->state = AP_STATE_IDLE;
+		return AP_WAIT_NONE;
+	case AP_RESPONSE_NO_PENDING_REPLY:
+		if (ap_dev->queue_count > 0)
+			return AP_WAIT_INTERRUPT;
+		ap_dev->state = AP_STATE_IDLE;
+		return AP_WAIT_NONE;
+	default:
+		ap_dev->state = AP_STATE_BORKED;
+		return AP_WAIT_NONE;
+	}
+}
+
+/**
+ * ap_sm_write(): Send messages from the request queue to an AP device.
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_WAIT_NONE, AP_WAIT_AGAIN, or AP_WAIT_INTERRUPT
+ */
+static enum ap_wait ap_sm_write(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+	struct ap_message *ap_msg;
+
+	if (ap_dev->requestq_count <= 0)
+		return AP_WAIT_NONE;
+	/* Start the next request on the queue. */
+	ap_msg = list_entry(ap_dev->requestq.next, struct ap_message, list);
+	status = __ap_send(ap_dev->qid, ap_msg->psmid,
+			   ap_msg->message, ap_msg->length, ap_msg->special);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		atomic_inc(&ap_poll_requests);
+		ap_dev->queue_count++;
+		if (ap_dev->queue_count == 1)
+			mod_timer(&ap_dev->timeout,
+				  jiffies + ap_dev->drv->request_timeout);
+		list_move_tail(&ap_msg->list, &ap_dev->pendingq);
+		ap_dev->requestq_count--;
+		ap_dev->pendingq_count++;
+		if (ap_dev->queue_count < ap_dev->queue_depth) {
+			ap_dev->state = AP_STATE_WORKING;
+			return AP_WAIT_AGAIN;
+		}
+		/* fall through */
+	case AP_RESPONSE_Q_FULL:
+		ap_dev->state = AP_STATE_QUEUE_FULL;
+		return AP_WAIT_INTERRUPT;
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+		ap_dev->state = AP_STATE_RESET_WAIT;
+		return AP_WAIT_TIMEOUT;
+	case AP_RESPONSE_MESSAGE_TOO_BIG:
+	case AP_RESPONSE_REQ_FAC_NOT_INST:
+		list_del_init(&ap_msg->list);
+		ap_dev->requestq_count--;
+		ap_msg->rc = -EINVAL;
+		ap_msg->receive(ap_dev, ap_msg, NULL);
+		return AP_WAIT_AGAIN;
+	default:
+		ap_dev->state = AP_STATE_BORKED;
+		return AP_WAIT_NONE;
+	}
+}
+
+/**
+ * ap_sm_read_write(): Send and receive messages to/from an AP device.
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_WAIT_NONE, AP_WAIT_AGAIN, or AP_WAIT_INTERRUPT
+ */
+static enum ap_wait ap_sm_read_write(struct ap_device *ap_dev)
+{
+	return min(ap_sm_read(ap_dev), ap_sm_write(ap_dev));
+}
+
+/**
+ * ap_sm_reset(): Reset an AP queue.
+ * @qid: The AP queue number
+ *
+ * Submit the Reset command to an AP queue.
+ */
+static enum ap_wait ap_sm_reset(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+
+	status = ap_reset_queue(ap_dev->qid);
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+		ap_dev->state = AP_STATE_RESET_WAIT;
+		ap_dev->interrupt = AP_INTR_DISABLED;
+		return AP_WAIT_TIMEOUT;
+	case AP_RESPONSE_BUSY:
+		return AP_WAIT_TIMEOUT;
+	case AP_RESPONSE_Q_NOT_AVAIL:
+	case AP_RESPONSE_DECONFIGURED:
+	case AP_RESPONSE_CHECKSTOPPED:
+	default:
+		ap_dev->state = AP_STATE_BORKED;
+		return AP_WAIT_NONE;
+	}
+}
+
+/**
+ * ap_sm_reset_wait(): Test queue for completion of the reset operation
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_POLL_IMMEDIATELY, AP_POLL_AFTER_TIMEROUT or 0.
+ */
+static enum ap_wait ap_sm_reset_wait(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+	unsigned long info;
+
+	if (ap_dev->queue_count > 0)
+		/* Try to read a completed message and get the status */
+		status = ap_sm_recv(ap_dev);
+	else
+		/* Get the status with TAPQ */
+		status = ap_test_queue(ap_dev->qid, &info);
+
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		if (ap_using_interrupts() &&
+		    ap_queue_enable_interruption(ap_dev,
+						 ap_airq.lsi_ptr) == 0)
+			ap_dev->state = AP_STATE_SETIRQ_WAIT;
+		else
+			ap_dev->state = (ap_dev->queue_count > 0) ?
+				AP_STATE_WORKING : AP_STATE_IDLE;
+		return AP_WAIT_AGAIN;
+	case AP_RESPONSE_BUSY:
+	case AP_RESPONSE_RESET_IN_PROGRESS:
+		return AP_WAIT_TIMEOUT;
+	case AP_RESPONSE_Q_NOT_AVAIL:
+	case AP_RESPONSE_DECONFIGURED:
+	case AP_RESPONSE_CHECKSTOPPED:
+	default:
+		ap_dev->state = AP_STATE_BORKED;
+		return AP_WAIT_NONE;
+	}
+}
+
+/**
+ * ap_sm_setirq_wait(): Test queue for completion of the irq enablement
+ * @ap_dev: pointer to the AP device
+ *
+ * Returns AP_POLL_IMMEDIATELY, AP_POLL_AFTER_TIMEROUT or 0.
+ */
+static enum ap_wait ap_sm_setirq_wait(struct ap_device *ap_dev)
+{
+	struct ap_queue_status status;
+	unsigned long info;
+
+	if (ap_dev->queue_count > 0)
+		/* Try to read a completed message and get the status */
+		status = ap_sm_recv(ap_dev);
+	else
+		/* Get the status with TAPQ */
+		status = ap_test_queue(ap_dev->qid, &info);
+
+	if (status.int_enabled == 1) {
+		/* Irqs are now enabled */
+		ap_dev->interrupt = AP_INTR_ENABLED;
+		ap_dev->state = (ap_dev->queue_count > 0) ?
+			AP_STATE_WORKING : AP_STATE_IDLE;
+	}
+
+	switch (status.response_code) {
+	case AP_RESPONSE_NORMAL:
+		if (ap_dev->queue_count > 0)
+			return AP_WAIT_AGAIN;
+		/* fallthrough */
+	case AP_RESPONSE_NO_PENDING_REPLY:
+		return AP_WAIT_TIMEOUT;
+	default:
+		ap_dev->state = AP_STATE_BORKED;
+		return AP_WAIT_NONE;
+	}
+}
+
+/*
+ * AP state machine jump table
+ */
+ap_func_t *ap_jumptable[NR_AP_STATES][NR_AP_EVENTS] = {
+	[AP_STATE_RESET_START] = {
+		[AP_EVENT_POLL] = ap_sm_reset,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+	[AP_STATE_RESET_WAIT] = {
+		[AP_EVENT_POLL] = ap_sm_reset_wait,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+	[AP_STATE_SETIRQ_WAIT] = {
+		[AP_EVENT_POLL] = ap_sm_setirq_wait,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+	[AP_STATE_IDLE] = {
+		[AP_EVENT_POLL] = ap_sm_write,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+	[AP_STATE_WORKING] = {
+		[AP_EVENT_POLL] = ap_sm_read_write,
+		[AP_EVENT_TIMEOUT] = ap_sm_reset,
+	},
+	[AP_STATE_QUEUE_FULL] = {
+		[AP_EVENT_POLL] = ap_sm_read,
+		[AP_EVENT_TIMEOUT] = ap_sm_reset,
+	},
+	[AP_STATE_SUSPEND_WAIT] = {
+		[AP_EVENT_POLL] = ap_sm_read,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+	[AP_STATE_BORKED] = {
+		[AP_EVENT_POLL] = ap_sm_nop,
+		[AP_EVENT_TIMEOUT] = ap_sm_nop,
+	},
+};
+
+static inline enum ap_wait ap_sm_event(struct ap_device *ap_dev,
+				       enum ap_event event)
+{
+	return ap_jumptable[ap_dev->state][event](ap_dev);
+}
+
+static inline enum ap_wait ap_sm_event_loop(struct ap_device *ap_dev,
+					    enum ap_event event)
+{
+	enum ap_wait wait;
+
+	while ((wait = ap_sm_event(ap_dev, event)) == AP_WAIT_AGAIN)
+		;
+	return wait;
+}
+
+/**
+ * ap_request_timeout(): Handling of request timeouts
+ * @data: Holds the AP device.
+ *
+ * Handles request timeouts.
+ */
+static void ap_request_timeout(unsigned long data)
+{
+	struct ap_device *ap_dev = (struct ap_device *) data;
+
+	if (ap_suspend_flag)
+		return;
+	spin_lock_bh(&ap_dev->lock);
+	ap_sm_wait(ap_sm_event(ap_dev, AP_EVENT_TIMEOUT));
+	spin_unlock_bh(&ap_dev->lock);
+}
+
+/**
+ * ap_poll_timeout(): AP receive polling for finished AP requests.
+ * @unused: Unused pointer.
+ *
+ * Schedules the AP tasklet using a high resolution timer.
+ */
+static enum hrtimer_restart ap_poll_timeout(struct hrtimer *unused)
+{
+	if (!ap_suspend_flag)
+		tasklet_schedule(&ap_tasklet);
+	return HRTIMER_NORESTART;
+}
+
+/**
+ * ap_interrupt_handler() - Schedule ap_tasklet on interrupt
+ * @airq: pointer to adapter interrupt descriptor
+ */
+static void ap_interrupt_handler(struct airq_struct *airq)
+{
+	inc_irq_stat(IRQIO_APB);
+	if (!ap_suspend_flag)
+		tasklet_schedule(&ap_tasklet);
+}
+
+/**
+ * ap_tasklet_fn(): Tasklet to poll all AP devices.
+ * @dummy: Unused variable
+ *
+ * Poll all AP devices on the bus.
+ */
+static void ap_tasklet_fn(unsigned long dummy)
+{
+	struct ap_device *ap_dev;
+	enum ap_wait wait = AP_WAIT_NONE;
+
+	/* Reset the indicator if interrupts are used. Thus new interrupts can
+	 * be received. Doing it in the beginning of the tasklet is therefor
+	 * important that no requests on any AP get lost.
+	 */
+	if (ap_using_interrupts())
+		xchg(ap_airq.lsi_ptr, 0);
+
+	spin_lock(&ap_device_list_lock);
+	list_for_each_entry(ap_dev, &ap_device_list, list) {
+		spin_lock_bh(&ap_dev->lock);
+		wait = min(wait, ap_sm_event_loop(ap_dev, AP_EVENT_POLL));
+		spin_unlock_bh(&ap_dev->lock);
+	}
+	spin_unlock(&ap_device_list_lock);
+	ap_sm_wait(wait);
+}
+
+/**
+ * ap_poll_thread(): Thread that polls for finished requests.
+ * @data: Unused pointer
+ *
+ * AP bus poll thread. The purpose of this thread is to poll for
+ * finished requests in a loop if there is a "free" cpu - that is
+ * a cpu that doesn't have anything better to do. The polling stops
+ * as soon as there is another task or if all messages have been
+ * delivered.
+ */
+static int ap_poll_thread(void *data)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	set_user_nice(current, MAX_NICE);
+	set_freezable();
+	while (!kthread_should_stop()) {
+		add_wait_queue(&ap_poll_wait, &wait);
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (ap_suspend_flag ||
+		    atomic_read(&ap_poll_requests) <= 0) {
+			schedule();
+			try_to_freeze();
+		}
+		set_current_state(TASK_RUNNING);
+		remove_wait_queue(&ap_poll_wait, &wait);
+		if (need_resched()) {
+			schedule();
+			try_to_freeze();
+			continue;
+		}
+		ap_tasklet_fn(0);
+	} while (!kthread_should_stop());
+	return 0;
+}
+
+static int ap_poll_thread_start(void)
+{
+	int rc;
+
+	if (ap_using_interrupts() || ap_poll_kthread)
+		return 0;
+	mutex_lock(&ap_poll_thread_mutex);
+	ap_poll_kthread = kthread_run(ap_poll_thread, NULL, "appoll");
+	rc = PTR_RET(ap_poll_kthread);
+	if (rc)
+		ap_poll_kthread = NULL;
+	mutex_unlock(&ap_poll_thread_mutex);
+	return rc;
+}
+
+static void ap_poll_thread_stop(void)
+{
+	if (!ap_poll_kthread)
+		return;
+	mutex_lock(&ap_poll_thread_mutex);
+	kthread_stop(ap_poll_kthread);
+	ap_poll_kthread = NULL;
+	mutex_unlock(&ap_poll_thread_mutex);
+}
+
+/**
+ * ap_queue_message(): Queue a request to an AP device.
+ * @ap_dev: The AP device to queue the message to
+ * @ap_msg: The message that is to be added
+ */
+void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg)
+{
+	/* For asynchronous message handling a valid receive-callback
+	 * is required. */
+	BUG_ON(!ap_msg->receive);
+
+	spin_lock_bh(&ap_dev->lock);
+	/* Queue the message. */
+	list_add_tail(&ap_msg->list, &ap_dev->requestq);
+	ap_dev->requestq_count++;
+	ap_dev->total_request_count++;
+	/* Send/receive as many request from the queue as possible. */
+	ap_sm_wait(ap_sm_event_loop(ap_dev, AP_EVENT_POLL));
+	spin_unlock_bh(&ap_dev->lock);
+}
+EXPORT_SYMBOL(ap_queue_message);
+
+/**
+ * ap_cancel_message(): Cancel a crypto request.
+ * @ap_dev: The AP device that has the message queued
+ * @ap_msg: The message that is to be removed
+ *
+ * Cancel a crypto request. This is done by removing the request
+ * from the device pending or request queue. Note that the
+ * request stays on the AP queue. When it finishes the message
+ * reply will be discarded because the psmid can't be found.
+ */
+void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg)
+{
+	struct ap_message *tmp;
+
+	spin_lock_bh(&ap_dev->lock);
+	if (!list_empty(&ap_msg->list)) {
+		list_for_each_entry(tmp, &ap_dev->pendingq, list)
+			if (tmp->psmid == ap_msg->psmid) {
+				ap_dev->pendingq_count--;
+				goto found;
+			}
+		ap_dev->requestq_count--;
+found:
+		list_del_init(&ap_msg->list);
+	}
+	spin_unlock_bh(&ap_dev->lock);
+}
+EXPORT_SYMBOL(ap_cancel_message);
+
+/*
+ * AP device related attributes.
+ */
+static ssize_t ap_hwtype_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->device_type);
+}
+
+static DEVICE_ATTR(hwtype, 0444, ap_hwtype_show, NULL);
+
+static ssize_t ap_raw_hwtype_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->raw_hwtype);
+}
+
+static DEVICE_ATTR(raw_hwtype, 0444, ap_raw_hwtype_show, NULL);
+
+static ssize_t ap_depth_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->queue_depth);
+}
+
+static DEVICE_ATTR(depth, 0444, ap_depth_show, NULL);
+static ssize_t ap_request_count_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc;
+
+	spin_lock_bh(&ap_dev->lock);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->total_request_count);
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(request_count, 0444, ap_request_count_show, NULL);
+
+static ssize_t ap_requestq_count_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc;
+
+	spin_lock_bh(&ap_dev->lock);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->requestq_count);
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(requestq_count, 0444, ap_requestq_count_show, NULL);
+
+static ssize_t ap_pendingq_count_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc;
+
+	spin_lock_bh(&ap_dev->lock);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->pendingq_count);
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(pendingq_count, 0444, ap_pendingq_count_show, NULL);
+
+static ssize_t ap_reset_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc = 0;
+
+	spin_lock_bh(&ap_dev->lock);
+	switch (ap_dev->state) {
+	case AP_STATE_RESET_START:
+	case AP_STATE_RESET_WAIT:
+		rc = snprintf(buf, PAGE_SIZE, "Reset in progress.\n");
+		break;
+	case AP_STATE_WORKING:
+	case AP_STATE_QUEUE_FULL:
+		rc = snprintf(buf, PAGE_SIZE, "Reset Timer armed.\n");
+		break;
+	default:
+		rc = snprintf(buf, PAGE_SIZE, "No Reset Timer set.\n");
+	}
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(reset, 0444, ap_reset_show, NULL);
+
+static ssize_t ap_interrupt_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc = 0;
+
+	spin_lock_bh(&ap_dev->lock);
+	if (ap_dev->state == AP_STATE_SETIRQ_WAIT)
+		rc = snprintf(buf, PAGE_SIZE, "Enable Interrupt pending.\n");
+	else if (ap_dev->interrupt == AP_INTR_ENABLED)
+		rc = snprintf(buf, PAGE_SIZE, "Interrupts enabled.\n");
+	else
+		rc = snprintf(buf, PAGE_SIZE, "Interrupts disabled.\n");
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(interrupt, 0444, ap_interrupt_show, NULL);
+
+static ssize_t ap_modalias_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "ap:t%02X\n", to_ap_dev(dev)->device_type);
+}
+
+static DEVICE_ATTR(modalias, 0444, ap_modalias_show, NULL);
+
+static ssize_t ap_functions_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	return snprintf(buf, PAGE_SIZE, "0x%08X\n", ap_dev->functions);
+}
+
+static DEVICE_ATTR(ap_functions, 0444, ap_functions_show, NULL);
+
+static struct attribute *ap_dev_attrs[] = {
+	&dev_attr_hwtype.attr,
+	&dev_attr_raw_hwtype.attr,
+	&dev_attr_depth.attr,
+	&dev_attr_request_count.attr,
+	&dev_attr_requestq_count.attr,
+	&dev_attr_pendingq_count.attr,
+	&dev_attr_reset.attr,
+	&dev_attr_interrupt.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_ap_functions.attr,
+	NULL
+};
+static struct attribute_group ap_dev_attr_group = {
+	.attrs = ap_dev_attrs
+};
+
+/**
+ * ap_bus_match()
+ * @dev: Pointer to device
+ * @drv: Pointer to device_driver
+ *
+ * AP bus driver registration/unregistration.
+ */
+static int ap_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	struct ap_driver *ap_drv = to_ap_drv(drv);
+	struct ap_device_id *id;
+
+	/*
+	 * Compare device type of the device with the list of
+	 * supported types of the device_driver.
+	 */
+	for (id = ap_drv->ids; id->match_flags; id++) {
+		if ((id->match_flags & AP_DEVICE_ID_MATCH_DEVICE_TYPE) &&
+		    (id->dev_type != ap_dev->device_type))
+			continue;
+		return 1;
+	}
+	return 0;
+}
+
+/**
+ * ap_uevent(): Uevent function for AP devices.
+ * @dev: Pointer to device
+ * @env: Pointer to kobj_uevent_env
+ *
+ * It sets up a single environment variable DEV_TYPE which contains the
+ * hardware device type.
+ */
+static int ap_uevent (struct device *dev, struct kobj_uevent_env *env)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int retval = 0;
+
+	if (!ap_dev)
+		return -ENODEV;
+
+	/* Set up DEV_TYPE environment variable. */
+	retval = add_uevent_var(env, "DEV_TYPE=%04X", ap_dev->device_type);
+	if (retval)
+		return retval;
+
+	/* Add MODALIAS= */
+	retval = add_uevent_var(env, "MODALIAS=ap:t%02X", ap_dev->device_type);
+
+	return retval;
+}
+
+static int ap_dev_suspend(struct device *dev, pm_message_t state)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+
+	/* Poll on the device until all requests are finished. */
+	spin_lock_bh(&ap_dev->lock);
+	ap_dev->state = AP_STATE_SUSPEND_WAIT;
+	while (ap_sm_event(ap_dev, AP_EVENT_POLL) != AP_WAIT_NONE)
+		;
+	ap_dev->state = AP_STATE_BORKED;
+	spin_unlock_bh(&ap_dev->lock);
+	return 0;
+}
+
+static int ap_dev_resume(struct device *dev)
+{
+	return 0;
+}
+
+static void ap_bus_suspend(void)
+{
+	ap_suspend_flag = 1;
+	/*
+	 * Disable scanning for devices, thus we do not want to scan
+	 * for them after removing.
+	 */
+	flush_work(&ap_scan_work);
+	tasklet_disable(&ap_tasklet);
+}
+
+static int __ap_devices_unregister(struct device *dev, void *dummy)
+{
+	device_unregister(dev);
+	return 0;
+}
+
+static void ap_bus_resume(void)
+{
+	int rc;
+
+	/* Unconditionally remove all AP devices */
+	bus_for_each_dev(&ap_bus_type, NULL, NULL, __ap_devices_unregister);
+	/* Reset thin interrupt setting */
+	if (ap_interrupts_available() && !ap_using_interrupts()) {
+		rc = register_adapter_interrupt(&ap_airq);
+		ap_airq_flag = (rc == 0);
+	}
+	if (!ap_interrupts_available() && ap_using_interrupts()) {
+		unregister_adapter_interrupt(&ap_airq);
+		ap_airq_flag = 0;
+	}
+	/* Reset domain */
+	if (!user_set_domain)
+		ap_domain_index = -1;
+	/* Get things going again */
+	ap_suspend_flag = 0;
+	if (ap_airq_flag)
+		xchg(ap_airq.lsi_ptr, 0);
+	tasklet_enable(&ap_tasklet);
+	queue_work(system_long_wq, &ap_scan_work);
+}
+
+static int ap_power_event(struct notifier_block *this, unsigned long event,
+			  void *ptr)
+{
+	switch (event) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		ap_bus_suspend();
+		break;
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		ap_bus_resume();
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_DONE;
+}
+static struct notifier_block ap_power_notifier = {
+	.notifier_call = ap_power_event,
+};
+
+static struct bus_type ap_bus_type = {
+	.name = "ap",
+	.match = &ap_bus_match,
+	.uevent = &ap_uevent,
+	.suspend = ap_dev_suspend,
+	.resume = ap_dev_resume,
+};
+
+static int ap_device_probe(struct device *dev)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	struct ap_driver *ap_drv = to_ap_drv(dev->driver);
+	int rc;
+
+	ap_dev->drv = ap_drv;
+	rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV;
+	if (rc)
+		ap_dev->drv = NULL;
+	return rc;
+}
+
+/**
+ * __ap_flush_queue(): Flush requests.
+ * @ap_dev: Pointer to the AP device
+ *
+ * Flush all requests from the request/pending queue of an AP device.
+ */
+static void __ap_flush_queue(struct ap_device *ap_dev)
+{
+	struct ap_message *ap_msg, *next;
+
+	list_for_each_entry_safe(ap_msg, next, &ap_dev->pendingq, list) {
+		list_del_init(&ap_msg->list);
+		ap_dev->pendingq_count--;
+		ap_msg->rc = -EAGAIN;
+		ap_msg->receive(ap_dev, ap_msg, NULL);
+	}
+	list_for_each_entry_safe(ap_msg, next, &ap_dev->requestq, list) {
+		list_del_init(&ap_msg->list);
+		ap_dev->requestq_count--;
+		ap_msg->rc = -EAGAIN;
+		ap_msg->receive(ap_dev, ap_msg, NULL);
+	}
+}
+
+void ap_flush_queue(struct ap_device *ap_dev)
+{
+	spin_lock_bh(&ap_dev->lock);
+	__ap_flush_queue(ap_dev);
+	spin_unlock_bh(&ap_dev->lock);
+}
+EXPORT_SYMBOL(ap_flush_queue);
+
+static int ap_device_remove(struct device *dev)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	struct ap_driver *ap_drv = ap_dev->drv;
+
+	ap_flush_queue(ap_dev);
+	del_timer_sync(&ap_dev->timeout);
+	spin_lock_bh(&ap_device_list_lock);
+	list_del_init(&ap_dev->list);
+	spin_unlock_bh(&ap_device_list_lock);
+	if (ap_drv->remove)
+		ap_drv->remove(ap_dev);
+	spin_lock_bh(&ap_dev->lock);
+	atomic_sub(ap_dev->queue_count, &ap_poll_requests);
+	spin_unlock_bh(&ap_dev->lock);
+	return 0;
+}
+
+static void ap_device_release(struct device *dev)
+{
+	kfree(to_ap_dev(dev));
+}
+
+int ap_driver_register(struct ap_driver *ap_drv, struct module *owner,
+		       char *name)
+{
+	struct device_driver *drv = &ap_drv->driver;
+
+	if (!initialised)
+		return -ENODEV;
+
+	drv->bus = &ap_bus_type;
+	drv->probe = ap_device_probe;
+	drv->remove = ap_device_remove;
+	drv->owner = owner;
+	drv->name = name;
+	return driver_register(drv);
+}
+EXPORT_SYMBOL(ap_driver_register);
+
+void ap_driver_unregister(struct ap_driver *ap_drv)
+{
+	driver_unregister(&ap_drv->driver);
+}
+EXPORT_SYMBOL(ap_driver_unregister);
+
+void ap_bus_force_rescan(void)
+{
+	if (ap_suspend_flag)
+		return;
+	/* processing a asynchronous bus rescan */
+	del_timer(&ap_config_timer);
+	queue_work(system_long_wq, &ap_scan_work);
+	flush_work(&ap_scan_work);
+}
+EXPORT_SYMBOL(ap_bus_force_rescan);
+
+/*
+ * AP bus attributes.
+ */
+static ssize_t ap_domain_show(struct bus_type *bus, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_domain_index);
+}
+
+static BUS_ATTR(ap_domain, 0444, ap_domain_show, NULL);
+
+static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf)
+{
+	if (!ap_configuration)	/* QCI not supported */
+		return snprintf(buf, PAGE_SIZE, "not supported\n");
+	if (!test_facility(76))
+		/* format 0 - 16 bit domain field */
+		return snprintf(buf, PAGE_SIZE, "%08x%08x\n",
+				ap_configuration->adm[0],
+				ap_configuration->adm[1]);
+	/* format 1 - 256 bit domain field */
+	return snprintf(buf, PAGE_SIZE,
+			"0x%08x%08x%08x%08x%08x%08x%08x%08x\n",
+			ap_configuration->adm[0], ap_configuration->adm[1],
+			ap_configuration->adm[2], ap_configuration->adm[3],
+			ap_configuration->adm[4], ap_configuration->adm[5],
+			ap_configuration->adm[6], ap_configuration->adm[7]);
+}
+
+static BUS_ATTR(ap_control_domain_mask, 0444,
+		ap_control_domain_mask_show, NULL);
+
+static ssize_t ap_config_time_show(struct bus_type *bus, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_config_time);
+}
+
+static ssize_t ap_interrupts_show(struct bus_type *bus, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+			ap_using_interrupts() ? 1 : 0);
+}
+
+static BUS_ATTR(ap_interrupts, 0444, ap_interrupts_show, NULL);
+
+static ssize_t ap_config_time_store(struct bus_type *bus,
+				    const char *buf, size_t count)
+{
+	int time;
+
+	if (sscanf(buf, "%d\n", &time) != 1 || time < 5 || time > 120)
+		return -EINVAL;
+	ap_config_time = time;
+	mod_timer(&ap_config_timer, jiffies + ap_config_time * HZ);
+	return count;
+}
+
+static BUS_ATTR(config_time, 0644, ap_config_time_show, ap_config_time_store);
+
+static ssize_t ap_poll_thread_show(struct bus_type *bus, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", ap_poll_kthread ? 1 : 0);
+}
+
+static ssize_t ap_poll_thread_store(struct bus_type *bus,
+				    const char *buf, size_t count)
+{
+	int flag, rc;
+
+	if (sscanf(buf, "%d\n", &flag) != 1)
+		return -EINVAL;
+	if (flag) {
+		rc = ap_poll_thread_start();
+		if (rc)
+			count = rc;
+	} else
+		ap_poll_thread_stop();
+	return count;
+}
+
+static BUS_ATTR(poll_thread, 0644, ap_poll_thread_show, ap_poll_thread_store);
+
+static ssize_t poll_timeout_show(struct bus_type *bus, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%llu\n", poll_timeout);
+}
+
+static ssize_t poll_timeout_store(struct bus_type *bus, const char *buf,
+				  size_t count)
+{
+	unsigned long long time;
+	ktime_t hr_time;
+
+	/* 120 seconds = maximum poll interval */
+	if (sscanf(buf, "%llu\n", &time) != 1 || time < 1 ||
+	    time > 120000000000ULL)
+		return -EINVAL;
+	poll_timeout = time;
+	hr_time = ktime_set(0, poll_timeout);
+
+	spin_lock_bh(&ap_poll_timer_lock);
+	hrtimer_cancel(&ap_poll_timer);
+	hrtimer_set_expires(&ap_poll_timer, hr_time);
+	hrtimer_start_expires(&ap_poll_timer, HRTIMER_MODE_ABS);
+	spin_unlock_bh(&ap_poll_timer_lock);
+
+	return count;
+}
+
+static BUS_ATTR(poll_timeout, 0644, poll_timeout_show, poll_timeout_store);
+
+static ssize_t ap_max_domain_id_show(struct bus_type *bus, char *buf)
+{
+	int max_domain_id;
+
+	if (ap_configuration)
+		max_domain_id = ap_max_domain_id ? : -1;
+	else
+		max_domain_id = 15;
+	return snprintf(buf, PAGE_SIZE, "%d\n", max_domain_id);
+}
+
+static BUS_ATTR(ap_max_domain_id, 0444, ap_max_domain_id_show, NULL);
+
+static struct bus_attribute *const ap_bus_attrs[] = {
+	&bus_attr_ap_domain,
+	&bus_attr_ap_control_domain_mask,
+	&bus_attr_config_time,
+	&bus_attr_poll_thread,
+	&bus_attr_ap_interrupts,
+	&bus_attr_poll_timeout,
+	&bus_attr_ap_max_domain_id,
+	NULL,
+};
+
+/**
+ * ap_select_domain(): Select an AP domain.
+ *
+ * Pick one of the 16 AP domains.
+ */
+static int ap_select_domain(void)
+{
+	int count, max_count, best_domain;
+	struct ap_queue_status status;
+	int i, j;
+
+	/*
+	 * We want to use a single domain. Either the one specified with
+	 * the "domain=" parameter or the domain with the maximum number
+	 * of devices.
+	 */
+	if (ap_domain_index >= 0)
+		/* Domain has already been selected. */
+		return 0;
+	best_domain = -1;
+	max_count = 0;
+	for (i = 0; i < AP_DOMAINS; i++) {
+		if (!ap_test_config_domain(i))
+			continue;
+		count = 0;
+		for (j = 0; j < AP_DEVICES; j++) {
+			if (!ap_test_config_card_id(j))
+				continue;
+			status = ap_test_queue(AP_MKQID(j, i), NULL);
+			if (status.response_code != AP_RESPONSE_NORMAL)
+				continue;
+			count++;
+		}
+		if (count > max_count) {
+			max_count = count;
+			best_domain = i;
+		}
+	}
+	if (best_domain >= 0){
+		ap_domain_index = best_domain;
+		return 0;
+	}
+	return -ENODEV;
+}
+
+/**
+ * __ap_scan_bus(): Scan the AP bus.
+ * @dev: Pointer to device
+ * @data: Pointer to data
+ *
+ * Scan the AP bus for new devices.
+ */
+static int __ap_scan_bus(struct device *dev, void *data)
+{
+	return to_ap_dev(dev)->qid == (ap_qid_t)(unsigned long) data;
+}
+
+static void ap_scan_bus(struct work_struct *unused)
+{
+	struct ap_device *ap_dev;
+	struct device *dev;
+	ap_qid_t qid;
+	int queue_depth = 0, device_type = 0;
+	unsigned int device_functions = 0;
+	int rc, i, borked;
+
+	ap_query_configuration();
+	if (ap_select_domain() != 0)
+		goto out;
+
+	for (i = 0; i < AP_DEVICES; i++) {
+		qid = AP_MKQID(i, ap_domain_index);
+		dev = bus_find_device(&ap_bus_type, NULL,
+				      (void *)(unsigned long)qid,
+				      __ap_scan_bus);
+		rc = ap_query_queue(qid, &queue_depth, &device_type,
+				    &device_functions);
+		if (dev) {
+			ap_dev = to_ap_dev(dev);
+			spin_lock_bh(&ap_dev->lock);
+			if (rc == -ENODEV)
+				ap_dev->state = AP_STATE_BORKED;
+			borked = ap_dev->state == AP_STATE_BORKED;
+			spin_unlock_bh(&ap_dev->lock);
+			if (borked)	/* Remove broken device */
+				device_unregister(dev);
+			put_device(dev);
+			if (!borked)
+				continue;
+		}
+		if (rc)
+			continue;
+		ap_dev = kzalloc(sizeof(*ap_dev), GFP_KERNEL);
+		if (!ap_dev)
+			break;
+		ap_dev->qid = qid;
+		ap_dev->state = AP_STATE_RESET_START;
+		ap_dev->interrupt = AP_INTR_DISABLED;
+		ap_dev->queue_depth = queue_depth;
+		ap_dev->raw_hwtype = device_type;
+		ap_dev->device_type = device_type;
+		/* CEX6 toleration: map to CEX5 */
+		if (device_type == AP_DEVICE_TYPE_CEX6)
+			ap_dev->device_type = AP_DEVICE_TYPE_CEX5;
+		ap_dev->functions = device_functions;
+		spin_lock_init(&ap_dev->lock);
+		INIT_LIST_HEAD(&ap_dev->pendingq);
+		INIT_LIST_HEAD(&ap_dev->requestq);
+		INIT_LIST_HEAD(&ap_dev->list);
+		setup_timer(&ap_dev->timeout, ap_request_timeout,
+			    (unsigned long) ap_dev);
+
+		ap_dev->device.bus = &ap_bus_type;
+		ap_dev->device.parent = ap_root_device;
+		rc = dev_set_name(&ap_dev->device, "card%02x",
+				  AP_QID_DEVICE(ap_dev->qid));
+		if (rc) {
+			kfree(ap_dev);
+			continue;
+		}
+		/* Add to list of devices */
+		spin_lock_bh(&ap_device_list_lock);
+		list_add(&ap_dev->list, &ap_device_list);
+		spin_unlock_bh(&ap_device_list_lock);
+		/* Start with a device reset */
+		spin_lock_bh(&ap_dev->lock);
+		ap_sm_wait(ap_sm_event(ap_dev, AP_EVENT_POLL));
+		spin_unlock_bh(&ap_dev->lock);
+		/* Register device */
+		ap_dev->device.release = ap_device_release;
+		rc = device_register(&ap_dev->device);
+		if (rc) {
+			spin_lock_bh(&ap_dev->lock);
+			list_del_init(&ap_dev->list);
+			spin_unlock_bh(&ap_dev->lock);
+			put_device(&ap_dev->device);
+			continue;
+		}
+		/* Add device attributes. */
+		rc = sysfs_create_group(&ap_dev->device.kobj,
+					&ap_dev_attr_group);
+		if (rc) {
+			device_unregister(&ap_dev->device);
+			continue;
+		}
+	}
+out:
+	mod_timer(&ap_config_timer, jiffies + ap_config_time * HZ);
+}
+
+static void ap_config_timeout(unsigned long ptr)
+{
+	if (ap_suspend_flag)
+		return;
+	queue_work(system_long_wq, &ap_scan_work);
+}
+
+static void ap_reset_domain(void)
+{
+	int i;
+
+	if (ap_domain_index == -1 || !ap_test_config_domain(ap_domain_index))
+		return;
+	for (i = 0; i < AP_DEVICES; i++)
+		ap_reset_queue(AP_MKQID(i, ap_domain_index));
+}
+
+static void ap_reset_all(void)
+{
+	int i, j;
+
+	for (i = 0; i < AP_DOMAINS; i++) {
+		if (!ap_test_config_domain(i))
+			continue;
+		for (j = 0; j < AP_DEVICES; j++) {
+			if (!ap_test_config_card_id(j))
+				continue;
+			ap_reset_queue(AP_MKQID(j, i));
+		}
+	}
+}
+
+static struct reset_call ap_reset_call = {
+	.fn = ap_reset_all,
+};
+
+/**
+ * ap_module_init(): The module initialization code.
+ *
+ * Initializes the module.
+ */
+int __init ap_module_init(void)
+{
+	int max_domain_id;
+	int rc, i;
+
+	if (ap_instructions_available() != 0) {
+		pr_warn("The hardware system does not support AP instructions\n");
+		return -ENODEV;
+	}
+
+	/* Get AP configuration data if available */
+	ap_init_configuration();
+
+	if (ap_configuration)
+		max_domain_id = ap_max_domain_id ? : (AP_DOMAINS - 1);
+	else
+		max_domain_id = 15;
+	if (ap_domain_index < -1 || ap_domain_index > max_domain_id) {
+		pr_warn("%d is not a valid cryptographic domain\n",
+			ap_domain_index);
+		return -EINVAL;
+	}
+	/* In resume callback we need to know if the user had set the domain.
+	 * If so, we can not just reset it.
+	 */
+	if (ap_domain_index >= 0)
+		user_set_domain = 1;
+
+	if (ap_interrupts_available()) {
+		rc = register_adapter_interrupt(&ap_airq);
+		ap_airq_flag = (rc == 0);
+	}
+
+	register_reset_call(&ap_reset_call);
+
+	/* Create /sys/bus/ap. */
+	rc = bus_register(&ap_bus_type);
+	if (rc)
+		goto out;
+	for (i = 0; ap_bus_attrs[i]; i++) {
+		rc = bus_create_file(&ap_bus_type, ap_bus_attrs[i]);
+		if (rc)
+			goto out_bus;
+	}
+
+	/* Create /sys/devices/ap. */
+	ap_root_device = root_device_register("ap");
+	rc = PTR_RET(ap_root_device);
+	if (rc)
+		goto out_bus;
+
+	/* Setup the AP bus rescan timer. */
+	setup_timer(&ap_config_timer, ap_config_timeout, 0);
+
+	/*
+	 * Setup the high resultion poll timer.
+	 * If we are running under z/VM adjust polling to z/VM polling rate.
+	 */
+	if (MACHINE_IS_VM)
+		poll_timeout = 1500000;
+	spin_lock_init(&ap_poll_timer_lock);
+	hrtimer_init(&ap_poll_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+	ap_poll_timer.function = ap_poll_timeout;
+
+	/* Start the low priority AP bus poll thread. */
+	if (ap_thread_flag) {
+		rc = ap_poll_thread_start();
+		if (rc)
+			goto out_work;
+	}
+
+	rc = register_pm_notifier(&ap_power_notifier);
+	if (rc)
+		goto out_pm;
+
+	queue_work(system_long_wq, &ap_scan_work);
+	initialised = true;
+
+	return 0;
+
+out_pm:
+	ap_poll_thread_stop();
+out_work:
+	hrtimer_cancel(&ap_poll_timer);
+	root_device_unregister(ap_root_device);
+out_bus:
+	while (i--)
+		bus_remove_file(&ap_bus_type, ap_bus_attrs[i]);
+	bus_unregister(&ap_bus_type);
+out:
+	unregister_reset_call(&ap_reset_call);
+	if (ap_using_interrupts())
+		unregister_adapter_interrupt(&ap_airq);
+	kfree(ap_configuration);
+	return rc;
+}
+
+/**
+ * ap_modules_exit(): The module termination code
+ *
+ * Terminates the module.
+ */
+void ap_module_exit(void)
+{
+	int i;
+
+	initialised = false;
+	ap_reset_domain();
+	ap_poll_thread_stop();
+	del_timer_sync(&ap_config_timer);
+	hrtimer_cancel(&ap_poll_timer);
+	tasklet_kill(&ap_tasklet);
+	bus_for_each_dev(&ap_bus_type, NULL, NULL, __ap_devices_unregister);
+	for (i = 0; ap_bus_attrs[i]; i++)
+		bus_remove_file(&ap_bus_type, ap_bus_attrs[i]);
+	unregister_pm_notifier(&ap_power_notifier);
+	root_device_unregister(ap_root_device);
+	bus_unregister(&ap_bus_type);
+	kfree(ap_configuration);
+	unregister_reset_call(&ap_reset_call);
+	if (ap_using_interrupts())
+		unregister_adapter_interrupt(&ap_airq);
+}
+
+module_init(ap_module_init);
+module_exit(ap_module_exit);
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
new file mode 100644
index 0000000..cc741e9
--- /dev/null
+++ b/drivers/s390/crypto/ap_bus.h
@@ -0,0 +1,270 @@
+/*
+ * Copyright IBM Corp. 2006, 2012
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *	      Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *	      Felix Beck <felix.beck@de.ibm.com>
+ *	      Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * Adjunct processor bus header file.
+ *
+ * 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.
+ */
+
+#ifndef _AP_BUS_H_
+#define _AP_BUS_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/types.h>
+
+#define AP_DEVICES 64		/* Number of AP devices. */
+#define AP_DOMAINS 256		/* Number of AP domains. */
+#define AP_RESET_TIMEOUT (HZ*0.7)	/* Time in ticks for reset timeouts. */
+#define AP_CONFIG_TIME 30	/* Time in seconds between AP bus rescans. */
+#define AP_POLL_TIME 1		/* Time in ticks between receive polls. */
+
+extern int ap_domain_index;
+
+/**
+ * The ap_qid_t identifier of an ap queue. It contains a
+ * 6 bit device index and a 4 bit queue index (domain).
+ */
+typedef unsigned int ap_qid_t;
+
+#define AP_MKQID(_device, _queue) (((_device) & 63) << 8 | ((_queue) & 255))
+#define AP_QID_DEVICE(_qid) (((_qid) >> 8) & 63)
+#define AP_QID_QUEUE(_qid) ((_qid) & 255)
+
+/**
+ * structy ap_queue_status - Holds the AP queue status.
+ * @queue_empty: Shows if queue is empty
+ * @replies_waiting: Waiting replies
+ * @queue_full: Is 1 if the queue is full
+ * @pad: A 4 bit pad
+ * @int_enabled: Shows if interrupts are enabled for the AP
+ * @response_conde: Holds the 8 bit response code
+ * @pad2: A 16 bit pad
+ *
+ * The ap queue status word is returned by all three AP functions
+ * (PQAP, NQAP and DQAP).  There's a set of flags in the first
+ * byte, followed by a 1 byte response code.
+ */
+struct ap_queue_status {
+	unsigned int queue_empty	: 1;
+	unsigned int replies_waiting	: 1;
+	unsigned int queue_full		: 1;
+	unsigned int pad1		: 4;
+	unsigned int int_enabled	: 1;
+	unsigned int response_code	: 8;
+	unsigned int pad2		: 16;
+} __packed;
+
+
+static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
+{
+	return (*ptr & (0x80000000u >> nr)) != 0;
+}
+
+#define AP_RESPONSE_NORMAL		0x00
+#define AP_RESPONSE_Q_NOT_AVAIL		0x01
+#define AP_RESPONSE_RESET_IN_PROGRESS	0x02
+#define AP_RESPONSE_DECONFIGURED	0x03
+#define AP_RESPONSE_CHECKSTOPPED	0x04
+#define AP_RESPONSE_BUSY		0x05
+#define AP_RESPONSE_INVALID_ADDRESS	0x06
+#define AP_RESPONSE_OTHERWISE_CHANGED	0x07
+#define AP_RESPONSE_Q_FULL		0x10
+#define AP_RESPONSE_NO_PENDING_REPLY	0x10
+#define AP_RESPONSE_INDEX_TOO_BIG	0x11
+#define AP_RESPONSE_NO_FIRST_PART	0x13
+#define AP_RESPONSE_MESSAGE_TOO_BIG	0x15
+#define AP_RESPONSE_REQ_FAC_NOT_INST	0x16
+
+/*
+ * Known device types
+ */
+#define AP_DEVICE_TYPE_PCICC	3
+#define AP_DEVICE_TYPE_PCICA	4
+#define AP_DEVICE_TYPE_PCIXCC	5
+#define AP_DEVICE_TYPE_CEX2A	6
+#define AP_DEVICE_TYPE_CEX2C	7
+#define AP_DEVICE_TYPE_CEX3A	8
+#define AP_DEVICE_TYPE_CEX3C	9
+#define AP_DEVICE_TYPE_CEX4	10
+#define AP_DEVICE_TYPE_CEX5	11
+#define AP_DEVICE_TYPE_CEX6	12
+
+/*
+ * Known function facilities
+ */
+#define AP_FUNC_MEX4K 1
+#define AP_FUNC_CRT4K 2
+#define AP_FUNC_COPRO 3
+#define AP_FUNC_ACCEL 4
+#define AP_FUNC_EP11  5
+#define AP_FUNC_APXA  6
+
+/*
+ * AP interrupt states
+ */
+#define AP_INTR_DISABLED	0	/* AP interrupt disabled */
+#define AP_INTR_ENABLED		1	/* AP interrupt enabled */
+
+/*
+ * AP device states
+ */
+enum ap_state {
+	AP_STATE_RESET_START,
+	AP_STATE_RESET_WAIT,
+	AP_STATE_SETIRQ_WAIT,
+	AP_STATE_IDLE,
+	AP_STATE_WORKING,
+	AP_STATE_QUEUE_FULL,
+	AP_STATE_SUSPEND_WAIT,
+	AP_STATE_BORKED,
+	NR_AP_STATES
+};
+
+/*
+ * AP device events
+ */
+enum ap_event {
+	AP_EVENT_POLL,
+	AP_EVENT_TIMEOUT,
+	NR_AP_EVENTS
+};
+
+/*
+ * AP wait behaviour
+ */
+enum ap_wait {
+	AP_WAIT_AGAIN,		/* retry immediately */
+	AP_WAIT_TIMEOUT,	/* wait for timeout */
+	AP_WAIT_INTERRUPT,	/* wait for thin interrupt (if available) */
+	AP_WAIT_NONE,		/* no wait */
+	NR_AP_WAIT
+};
+
+struct ap_device;
+struct ap_message;
+
+struct ap_driver {
+	struct device_driver driver;
+	struct ap_device_id *ids;
+
+	int (*probe)(struct ap_device *);
+	void (*remove)(struct ap_device *);
+	int request_timeout;		/* request timeout in jiffies */
+};
+
+#define to_ap_drv(x) container_of((x), struct ap_driver, driver)
+
+int ap_driver_register(struct ap_driver *, struct module *, char *);
+void ap_driver_unregister(struct ap_driver *);
+
+typedef enum ap_wait (ap_func_t)(struct ap_device *ap_dev);
+
+struct ap_device {
+	struct device device;
+	struct ap_driver *drv;		/* Pointer to AP device driver. */
+	spinlock_t lock;		/* Per device lock. */
+	struct list_head list;		/* private list of all AP devices. */
+
+	enum ap_state state;		/* State of the AP device. */
+
+	ap_qid_t qid;			/* AP queue id. */
+	int queue_depth;		/* AP queue depth.*/
+	int device_type;		/* AP device type. */
+	int raw_hwtype;			/* AP raw hardware type. */
+	unsigned int functions;		/* AP device function bitfield. */
+	struct timer_list timeout;	/* Timer for request timeouts. */
+
+	int interrupt;			/* indicate if interrupts are enabled */
+	int queue_count;		/* # messages currently on AP queue. */
+
+	struct list_head pendingq;	/* List of message sent to AP queue. */
+	int pendingq_count;		/* # requests on pendingq list. */
+	struct list_head requestq;	/* List of message yet to be sent. */
+	int requestq_count;		/* # requests on requestq list. */
+	int total_request_count;	/* # requests ever for this AP device. */
+
+	struct ap_message *reply;	/* Per device reply message. */
+
+	void *private;			/* ap driver private pointer. */
+};
+
+#define to_ap_dev(x) container_of((x), struct ap_device, device)
+
+struct ap_message {
+	struct list_head list;		/* Request queueing. */
+	unsigned long long psmid;	/* Message id. */
+	void *message;			/* Pointer to message buffer. */
+	size_t length;			/* Message length. */
+	int rc;				/* Return code for this message */
+
+	void *private;			/* ap driver private pointer. */
+	unsigned int special:1;		/* Used for special commands. */
+	/* receive is called from tasklet context */
+	void (*receive)(struct ap_device *, struct ap_message *,
+			struct ap_message *);
+};
+
+struct ap_config_info {
+	unsigned int special_command:1;
+	unsigned int ap_extended:1;
+	unsigned char reserved1:6;
+	unsigned char reserved2[15];
+	unsigned int apm[8];		/* AP ID mask */
+	unsigned int aqm[8];		/* AP queue mask */
+	unsigned int adm[8];		/* AP domain mask */
+	unsigned char reserved4[16];
+} __packed;
+
+#define AP_DEVICE(dt)					\
+	.dev_type=(dt),					\
+	.match_flags=AP_DEVICE_ID_MATCH_DEVICE_TYPE,
+
+/**
+ * ap_init_message() - Initialize ap_message.
+ * Initialize a message before using. Otherwise this might result in
+ * unexpected behaviour.
+ */
+static inline void ap_init_message(struct ap_message *ap_msg)
+{
+	ap_msg->psmid = 0;
+	ap_msg->length = 0;
+	ap_msg->rc = 0;
+	ap_msg->special = 0;
+	ap_msg->receive = NULL;
+}
+
+/*
+ * Note: don't use ap_send/ap_recv after using ap_queue_message
+ * for the first time. Otherwise the ap message queue will get
+ * confused.
+ */
+int ap_send(ap_qid_t, unsigned long long, void *, size_t);
+int ap_recv(ap_qid_t, unsigned long long *, void *, size_t);
+
+void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
+void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
+void ap_flush_queue(struct ap_device *ap_dev);
+void ap_bus_force_rescan(void);
+
+int ap_module_init(void);
+void ap_module_exit(void);
+
+#endif /* _AP_BUS_H_ */
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
new file mode 100644
index 0000000..9f8fa42
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -0,0 +1,1485 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *	       Cornelia Huck <cornelia.huck@de.ibm.com>
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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/seq_file.h>
+#include <linux/compat.h>
+#include <linux/slab.h>
+#include <linux/atomic.h>
+#include <asm/uaccess.h>
+#include <linux/hw_random.h>
+#include <linux/debugfs.h>
+#include <asm/debug.h>
+
+#include "zcrypt_debug.h"
+#include "zcrypt_api.h"
+
+#include "zcrypt_msgtype6.h"
+
+/*
+ * Module description.
+ */
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static int zcrypt_hwrng_seed = 1;
+module_param_named(hwrng_seed, zcrypt_hwrng_seed, int, S_IRUSR|S_IRGRP);
+MODULE_PARM_DESC(hwrng_seed, "Turn on/off hwrng auto seed, default is 1 (on).");
+
+static DEFINE_SPINLOCK(zcrypt_device_lock);
+static LIST_HEAD(zcrypt_device_list);
+static int zcrypt_device_count = 0;
+static atomic_t zcrypt_open_count = ATOMIC_INIT(0);
+static atomic_t zcrypt_rescan_count = ATOMIC_INIT(0);
+
+atomic_t zcrypt_rescan_req = ATOMIC_INIT(0);
+EXPORT_SYMBOL(zcrypt_rescan_req);
+
+static int zcrypt_rng_device_add(void);
+static void zcrypt_rng_device_remove(void);
+
+static DEFINE_SPINLOCK(zcrypt_ops_list_lock);
+static LIST_HEAD(zcrypt_ops_list);
+
+static debug_info_t *zcrypt_dbf_common;
+static debug_info_t *zcrypt_dbf_devices;
+static struct dentry *debugfs_root;
+
+/*
+ * Device attributes common for all crypto devices.
+ */
+static ssize_t zcrypt_type_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct zcrypt_device *zdev = to_ap_dev(dev)->private;
+	return snprintf(buf, PAGE_SIZE, "%s\n", zdev->type_string);
+}
+
+static DEVICE_ATTR(type, 0444, zcrypt_type_show, NULL);
+
+static ssize_t zcrypt_online_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct zcrypt_device *zdev = to_ap_dev(dev)->private;
+	return snprintf(buf, PAGE_SIZE, "%d\n", zdev->online);
+}
+
+static ssize_t zcrypt_online_store(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	struct zcrypt_device *zdev = to_ap_dev(dev)->private;
+	int online;
+
+	if (sscanf(buf, "%d\n", &online) != 1 || online < 0 || online > 1)
+		return -EINVAL;
+	zdev->online = online;
+	ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dman", zdev->ap_dev->qid,
+		       zdev->online);
+	if (!online)
+		ap_flush_queue(zdev->ap_dev);
+	return count;
+}
+
+static DEVICE_ATTR(online, 0644, zcrypt_online_show, zcrypt_online_store);
+
+static struct attribute * zcrypt_device_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_online.attr,
+	NULL,
+};
+
+static struct attribute_group zcrypt_device_attr_group = {
+	.attrs = zcrypt_device_attrs,
+};
+
+/**
+ * Process a rescan of the transport layer.
+ *
+ * Returns 1, if the rescan has been processed, otherwise 0.
+ */
+static inline int zcrypt_process_rescan(void)
+{
+	if (atomic_read(&zcrypt_rescan_req)) {
+		atomic_set(&zcrypt_rescan_req, 0);
+		atomic_inc(&zcrypt_rescan_count);
+		ap_bus_force_rescan();
+		ZCRYPT_DBF_COMMON(DBF_INFO, "rescan%07d",
+				  atomic_inc_return(&zcrypt_rescan_count));
+		return 1;
+	}
+	return 0;
+}
+
+/**
+ * __zcrypt_increase_preference(): Increase preference of a crypto device.
+ * @zdev: Pointer the crypto device
+ *
+ * Move the device towards the head of the device list.
+ * Need to be called while holding the zcrypt device list lock.
+ * Note: cards with speed_rating of 0 are kept at the end of the list.
+ */
+static void __zcrypt_increase_preference(struct zcrypt_device *zdev)
+{
+	struct zcrypt_device *tmp;
+	struct list_head *l;
+
+	if (zdev->speed_rating == 0)
+		return;
+	for (l = zdev->list.prev; l != &zcrypt_device_list; l = l->prev) {
+		tmp = list_entry(l, struct zcrypt_device, list);
+		if ((tmp->request_count + 1) * tmp->speed_rating <=
+		    (zdev->request_count + 1) * zdev->speed_rating &&
+		    tmp->speed_rating != 0)
+			break;
+	}
+	if (l == zdev->list.prev)
+		return;
+	/* Move zdev behind l */
+	list_move(&zdev->list, l);
+}
+
+/**
+ * __zcrypt_decrease_preference(): Decrease preference of a crypto device.
+ * @zdev: Pointer to a crypto device.
+ *
+ * Move the device towards the tail of the device list.
+ * Need to be called while holding the zcrypt device list lock.
+ * Note: cards with speed_rating of 0 are kept at the end of the list.
+ */
+static void __zcrypt_decrease_preference(struct zcrypt_device *zdev)
+{
+	struct zcrypt_device *tmp;
+	struct list_head *l;
+
+	if (zdev->speed_rating == 0)
+		return;
+	for (l = zdev->list.next; l != &zcrypt_device_list; l = l->next) {
+		tmp = list_entry(l, struct zcrypt_device, list);
+		if ((tmp->request_count + 1) * tmp->speed_rating >
+		    (zdev->request_count + 1) * zdev->speed_rating ||
+		    tmp->speed_rating == 0)
+			break;
+	}
+	if (l == zdev->list.next)
+		return;
+	/* Move zdev before l */
+	list_move_tail(&zdev->list, l);
+}
+
+static void zcrypt_device_release(struct kref *kref)
+{
+	struct zcrypt_device *zdev =
+		container_of(kref, struct zcrypt_device, refcount);
+	zcrypt_device_free(zdev);
+}
+
+void zcrypt_device_get(struct zcrypt_device *zdev)
+{
+	kref_get(&zdev->refcount);
+}
+EXPORT_SYMBOL(zcrypt_device_get);
+
+int zcrypt_device_put(struct zcrypt_device *zdev)
+{
+	return kref_put(&zdev->refcount, zcrypt_device_release);
+}
+EXPORT_SYMBOL(zcrypt_device_put);
+
+struct zcrypt_device *zcrypt_device_alloc(size_t max_response_size)
+{
+	struct zcrypt_device *zdev;
+
+	zdev = kzalloc(sizeof(struct zcrypt_device), GFP_KERNEL);
+	if (!zdev)
+		return NULL;
+	zdev->reply.message = kmalloc(max_response_size, GFP_KERNEL);
+	if (!zdev->reply.message)
+		goto out_free;
+	zdev->reply.length = max_response_size;
+	spin_lock_init(&zdev->lock);
+	INIT_LIST_HEAD(&zdev->list);
+	zdev->dbf_area = zcrypt_dbf_devices;
+	return zdev;
+
+out_free:
+	kfree(zdev);
+	return NULL;
+}
+EXPORT_SYMBOL(zcrypt_device_alloc);
+
+void zcrypt_device_free(struct zcrypt_device *zdev)
+{
+	kfree(zdev->reply.message);
+	kfree(zdev);
+}
+EXPORT_SYMBOL(zcrypt_device_free);
+
+/**
+ * zcrypt_device_register() - Register a crypto device.
+ * @zdev: Pointer to a crypto device
+ *
+ * Register a crypto device. Returns 0 if successful.
+ */
+int zcrypt_device_register(struct zcrypt_device *zdev)
+{
+	int rc;
+
+	if (!zdev->ops)
+		return -ENODEV;
+	rc = sysfs_create_group(&zdev->ap_dev->device.kobj,
+				&zcrypt_device_attr_group);
+	if (rc)
+		goto out;
+	get_device(&zdev->ap_dev->device);
+	kref_init(&zdev->refcount);
+	spin_lock_bh(&zcrypt_device_lock);
+	zdev->online = 1;	/* New devices are online by default. */
+	ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dreg", zdev->ap_dev->qid,
+		       zdev->online);
+	list_add_tail(&zdev->list, &zcrypt_device_list);
+	__zcrypt_increase_preference(zdev);
+	zcrypt_device_count++;
+	spin_unlock_bh(&zcrypt_device_lock);
+	if (zdev->ops->rng) {
+		rc = zcrypt_rng_device_add();
+		if (rc)
+			goto out_unregister;
+	}
+	return 0;
+
+out_unregister:
+	spin_lock_bh(&zcrypt_device_lock);
+	zcrypt_device_count--;
+	list_del_init(&zdev->list);
+	spin_unlock_bh(&zcrypt_device_lock);
+	sysfs_remove_group(&zdev->ap_dev->device.kobj,
+			   &zcrypt_device_attr_group);
+	put_device(&zdev->ap_dev->device);
+	zcrypt_device_put(zdev);
+out:
+	return rc;
+}
+EXPORT_SYMBOL(zcrypt_device_register);
+
+/**
+ * zcrypt_device_unregister(): Unregister a crypto device.
+ * @zdev: Pointer to crypto device
+ *
+ * Unregister a crypto device.
+ */
+void zcrypt_device_unregister(struct zcrypt_device *zdev)
+{
+	if (zdev->ops->rng)
+		zcrypt_rng_device_remove();
+	spin_lock_bh(&zcrypt_device_lock);
+	zcrypt_device_count--;
+	list_del_init(&zdev->list);
+	spin_unlock_bh(&zcrypt_device_lock);
+	sysfs_remove_group(&zdev->ap_dev->device.kobj,
+			   &zcrypt_device_attr_group);
+	put_device(&zdev->ap_dev->device);
+	zcrypt_device_put(zdev);
+}
+EXPORT_SYMBOL(zcrypt_device_unregister);
+
+void zcrypt_msgtype_register(struct zcrypt_ops *zops)
+{
+	spin_lock_bh(&zcrypt_ops_list_lock);
+	list_add_tail(&zops->list, &zcrypt_ops_list);
+	spin_unlock_bh(&zcrypt_ops_list_lock);
+}
+EXPORT_SYMBOL(zcrypt_msgtype_register);
+
+void zcrypt_msgtype_unregister(struct zcrypt_ops *zops)
+{
+	spin_lock_bh(&zcrypt_ops_list_lock);
+	list_del_init(&zops->list);
+	spin_unlock_bh(&zcrypt_ops_list_lock);
+}
+EXPORT_SYMBOL(zcrypt_msgtype_unregister);
+
+static inline
+struct zcrypt_ops *__ops_lookup(unsigned char *name, int variant)
+{
+	struct zcrypt_ops *zops;
+	int found = 0;
+
+	spin_lock_bh(&zcrypt_ops_list_lock);
+	list_for_each_entry(zops, &zcrypt_ops_list, list) {
+		if ((zops->variant == variant) &&
+		    (!strncmp(zops->name, name, sizeof(zops->name)))) {
+			found = 1;
+			break;
+		}
+	}
+	if (!found || !try_module_get(zops->owner))
+		zops = NULL;
+
+	spin_unlock_bh(&zcrypt_ops_list_lock);
+
+	return zops;
+}
+
+struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
+{
+	struct zcrypt_ops *zops = NULL;
+
+	zops = __ops_lookup(name, variant);
+	if (!zops) {
+		request_module("%s", name);
+		zops = __ops_lookup(name, variant);
+	}
+	return zops;
+}
+EXPORT_SYMBOL(zcrypt_msgtype_request);
+
+void zcrypt_msgtype_release(struct zcrypt_ops *zops)
+{
+	if (zops)
+		module_put(zops->owner);
+}
+EXPORT_SYMBOL(zcrypt_msgtype_release);
+
+/**
+ * zcrypt_read (): Not supported beyond zcrypt 1.3.1.
+ *
+ * This function is not supported beyond zcrypt 1.3.1.
+ */
+static ssize_t zcrypt_read(struct file *filp, char __user *buf,
+			   size_t count, loff_t *f_pos)
+{
+	return -EPERM;
+}
+
+/**
+ * zcrypt_write(): Not allowed.
+ *
+ * Write is is not allowed
+ */
+static ssize_t zcrypt_write(struct file *filp, const char __user *buf,
+			    size_t count, loff_t *f_pos)
+{
+	return -EPERM;
+}
+
+/**
+ * zcrypt_open(): Count number of users.
+ *
+ * Device open function to count number of users.
+ */
+static int zcrypt_open(struct inode *inode, struct file *filp)
+{
+	atomic_inc(&zcrypt_open_count);
+	return nonseekable_open(inode, filp);
+}
+
+/**
+ * zcrypt_release(): Count number of users.
+ *
+ * Device close function to count number of users.
+ */
+static int zcrypt_release(struct inode *inode, struct file *filp)
+{
+	atomic_dec(&zcrypt_open_count);
+	return 0;
+}
+
+/*
+ * zcrypt ioctls.
+ */
+static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex)
+{
+	struct zcrypt_device *zdev;
+	int rc;
+
+	if (mex->outputdatalength < mex->inputdatalength)
+		return -EINVAL;
+	/*
+	 * As long as outputdatalength is big enough, we can set the
+	 * outputdatalength equal to the inputdatalength, since that is the
+	 * number of bytes we will copy in any case
+	 */
+	mex->outputdatalength = mex->inputdatalength;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		if (!zdev->online ||
+		    !zdev->ops->rsa_modexpo ||
+		    zdev->min_mod_size > mex->inputdatalength ||
+		    zdev->max_mod_size < mex->inputdatalength)
+			continue;
+		zcrypt_device_get(zdev);
+		get_device(&zdev->ap_dev->device);
+		zdev->request_count++;
+		__zcrypt_decrease_preference(zdev);
+		if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+			spin_unlock_bh(&zcrypt_device_lock);
+			rc = zdev->ops->rsa_modexpo(zdev, mex);
+			spin_lock_bh(&zcrypt_device_lock);
+			module_put(zdev->ap_dev->drv->driver.owner);
+		}
+		else
+			rc = -EAGAIN;
+		zdev->request_count--;
+		__zcrypt_increase_preference(zdev);
+		put_device(&zdev->ap_dev->device);
+		zcrypt_device_put(zdev);
+		spin_unlock_bh(&zcrypt_device_lock);
+		return rc;
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return -ENODEV;
+}
+
+static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
+{
+	struct zcrypt_device *zdev;
+	unsigned long long z1, z2, z3;
+	int rc, copied;
+
+	if (crt->outputdatalength < crt->inputdatalength)
+		return -EINVAL;
+	/*
+	 * As long as outputdatalength is big enough, we can set the
+	 * outputdatalength equal to the inputdatalength, since that is the
+	 * number of bytes we will copy in any case
+	 */
+	crt->outputdatalength = crt->inputdatalength;
+
+	copied = 0;
+ restart:
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		if (!zdev->online ||
+		    !zdev->ops->rsa_modexpo_crt ||
+		    zdev->min_mod_size > crt->inputdatalength ||
+		    zdev->max_mod_size < crt->inputdatalength)
+			continue;
+		if (zdev->short_crt && crt->inputdatalength > 240) {
+			/*
+			 * Check inputdata for leading zeros for cards
+			 * that can't handle np_prime, bp_key, or
+			 * u_mult_inv > 128 bytes.
+			 */
+			if (copied == 0) {
+				unsigned int len;
+				spin_unlock_bh(&zcrypt_device_lock);
+				/* len is max 256 / 2 - 120 = 8
+				 * For bigger device just assume len of leading
+				 * 0s is 8 as stated in the requirements for
+				 * ica_rsa_modexpo_crt struct in zcrypt.h.
+				 */
+				if (crt->inputdatalength <= 256)
+					len = crt->inputdatalength / 2 - 120;
+				else
+					len = 8;
+				if (len > sizeof(z1))
+					return -EFAULT;
+				z1 = z2 = z3 = 0;
+				if (copy_from_user(&z1, crt->np_prime, len) ||
+				    copy_from_user(&z2, crt->bp_key, len) ||
+				    copy_from_user(&z3, crt->u_mult_inv, len))
+					return -EFAULT;
+				z1 = z2 = z3 = 0;
+				copied = 1;
+				/*
+				 * We have to restart device lookup -
+				 * the device list may have changed by now.
+				 */
+				goto restart;
+			}
+			if (z1 != 0ULL || z2 != 0ULL || z3 != 0ULL)
+				/* The device can't handle this request. */
+				continue;
+		}
+		zcrypt_device_get(zdev);
+		get_device(&zdev->ap_dev->device);
+		zdev->request_count++;
+		__zcrypt_decrease_preference(zdev);
+		if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+			spin_unlock_bh(&zcrypt_device_lock);
+			rc = zdev->ops->rsa_modexpo_crt(zdev, crt);
+			spin_lock_bh(&zcrypt_device_lock);
+			module_put(zdev->ap_dev->drv->driver.owner);
+		}
+		else
+			rc = -EAGAIN;
+		zdev->request_count--;
+		__zcrypt_increase_preference(zdev);
+		put_device(&zdev->ap_dev->device);
+		zcrypt_device_put(zdev);
+		spin_unlock_bh(&zcrypt_device_lock);
+		return rc;
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return -ENODEV;
+}
+
+static long zcrypt_send_cprb(struct ica_xcRB *xcRB)
+{
+	struct zcrypt_device *zdev;
+	int rc;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		if (!zdev->online || !zdev->ops->send_cprb ||
+		   (zdev->ops->variant == MSGTYPE06_VARIANT_EP11) ||
+		   (xcRB->user_defined != AUTOSELECT &&
+		    AP_QID_DEVICE(zdev->ap_dev->qid) != xcRB->user_defined))
+			continue;
+		zcrypt_device_get(zdev);
+		get_device(&zdev->ap_dev->device);
+		zdev->request_count++;
+		__zcrypt_decrease_preference(zdev);
+		if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+			spin_unlock_bh(&zcrypt_device_lock);
+			rc = zdev->ops->send_cprb(zdev, xcRB);
+			spin_lock_bh(&zcrypt_device_lock);
+			module_put(zdev->ap_dev->drv->driver.owner);
+		}
+		else
+			rc = -EAGAIN;
+		zdev->request_count--;
+		__zcrypt_increase_preference(zdev);
+		put_device(&zdev->ap_dev->device);
+		zcrypt_device_put(zdev);
+		spin_unlock_bh(&zcrypt_device_lock);
+		return rc;
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return -ENODEV;
+}
+
+struct ep11_target_dev_list {
+	unsigned short		targets_num;
+	struct ep11_target_dev	*targets;
+};
+
+static bool is_desired_ep11dev(unsigned int dev_qid,
+			       struct ep11_target_dev_list dev_list)
+{
+	int n;
+
+	for (n = 0; n < dev_list.targets_num; n++, dev_list.targets++) {
+		if ((AP_QID_DEVICE(dev_qid) == dev_list.targets->ap_id) &&
+		    (AP_QID_QUEUE(dev_qid) == dev_list.targets->dom_id)) {
+			return true;
+		}
+	}
+	return false;
+}
+
+static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
+{
+	struct zcrypt_device *zdev;
+	bool autoselect = false;
+	int rc;
+	struct ep11_target_dev_list ep11_dev_list = {
+		.targets_num	=  0x00,
+		.targets	=  NULL,
+	};
+
+	ep11_dev_list.targets_num = (unsigned short) xcrb->targets_num;
+
+	/* empty list indicates autoselect (all available targets) */
+	if (ep11_dev_list.targets_num == 0)
+		autoselect = true;
+	else {
+		ep11_dev_list.targets = kcalloc((unsigned short)
+						xcrb->targets_num,
+						sizeof(struct ep11_target_dev),
+						GFP_KERNEL);
+		if (!ep11_dev_list.targets)
+			return -ENOMEM;
+
+		if (copy_from_user(ep11_dev_list.targets,
+				   (struct ep11_target_dev __force __user *)
+				   xcrb->targets, xcrb->targets_num *
+				   sizeof(struct ep11_target_dev)))
+			return -EFAULT;
+	}
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		/* check if device is eligible */
+		if (!zdev->online ||
+		    zdev->ops->variant != MSGTYPE06_VARIANT_EP11)
+			continue;
+
+		/* check if device is selected as valid target */
+		if (!is_desired_ep11dev(zdev->ap_dev->qid, ep11_dev_list) &&
+		    !autoselect)
+			continue;
+
+		zcrypt_device_get(zdev);
+		get_device(&zdev->ap_dev->device);
+		zdev->request_count++;
+		__zcrypt_decrease_preference(zdev);
+		if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+			spin_unlock_bh(&zcrypt_device_lock);
+			rc = zdev->ops->send_ep11_cprb(zdev, xcrb);
+			spin_lock_bh(&zcrypt_device_lock);
+			module_put(zdev->ap_dev->drv->driver.owner);
+		} else {
+			rc = -EAGAIN;
+		  }
+		zdev->request_count--;
+		__zcrypt_increase_preference(zdev);
+		put_device(&zdev->ap_dev->device);
+		zcrypt_device_put(zdev);
+		spin_unlock_bh(&zcrypt_device_lock);
+		return rc;
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return -ENODEV;
+}
+
+static long zcrypt_rng(char *buffer)
+{
+	struct zcrypt_device *zdev;
+	int rc;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		if (!zdev->online || !zdev->ops->rng)
+			continue;
+		zcrypt_device_get(zdev);
+		get_device(&zdev->ap_dev->device);
+		zdev->request_count++;
+		__zcrypt_decrease_preference(zdev);
+		if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+			spin_unlock_bh(&zcrypt_device_lock);
+			rc = zdev->ops->rng(zdev, buffer);
+			spin_lock_bh(&zcrypt_device_lock);
+			module_put(zdev->ap_dev->drv->driver.owner);
+		} else
+			rc = -EAGAIN;
+		zdev->request_count--;
+		__zcrypt_increase_preference(zdev);
+		put_device(&zdev->ap_dev->device);
+		zcrypt_device_put(zdev);
+		spin_unlock_bh(&zcrypt_device_lock);
+		return rc;
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return -ENODEV;
+}
+
+static void zcrypt_status_mask(char status[AP_DEVICES])
+{
+	struct zcrypt_device *zdev;
+
+	memset(status, 0, sizeof(char) * AP_DEVICES);
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list)
+		status[AP_QID_DEVICE(zdev->ap_dev->qid)] =
+			zdev->online ? zdev->user_space_type : 0x0d;
+	spin_unlock_bh(&zcrypt_device_lock);
+}
+
+static void zcrypt_qdepth_mask(char qdepth[AP_DEVICES])
+{
+	struct zcrypt_device *zdev;
+
+	memset(qdepth, 0, sizeof(char)	* AP_DEVICES);
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		spin_lock(&zdev->ap_dev->lock);
+		qdepth[AP_QID_DEVICE(zdev->ap_dev->qid)] =
+			zdev->ap_dev->pendingq_count +
+			zdev->ap_dev->requestq_count;
+		spin_unlock(&zdev->ap_dev->lock);
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+}
+
+static void zcrypt_perdev_reqcnt(int reqcnt[AP_DEVICES])
+{
+	struct zcrypt_device *zdev;
+
+	memset(reqcnt, 0, sizeof(int) * AP_DEVICES);
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		spin_lock(&zdev->ap_dev->lock);
+		reqcnt[AP_QID_DEVICE(zdev->ap_dev->qid)] =
+			zdev->ap_dev->total_request_count;
+		spin_unlock(&zdev->ap_dev->lock);
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+}
+
+static int zcrypt_pendingq_count(void)
+{
+	struct zcrypt_device *zdev;
+	int pendingq_count = 0;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		spin_lock(&zdev->ap_dev->lock);
+		pendingq_count += zdev->ap_dev->pendingq_count;
+		spin_unlock(&zdev->ap_dev->lock);
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return pendingq_count;
+}
+
+static int zcrypt_requestq_count(void)
+{
+	struct zcrypt_device *zdev;
+	int requestq_count = 0;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list) {
+		spin_lock(&zdev->ap_dev->lock);
+		requestq_count += zdev->ap_dev->requestq_count;
+		spin_unlock(&zdev->ap_dev->lock);
+	}
+	spin_unlock_bh(&zcrypt_device_lock);
+	return requestq_count;
+}
+
+static int zcrypt_count_type(int type)
+{
+	struct zcrypt_device *zdev;
+	int device_count = 0;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list)
+		if (zdev->user_space_type == type)
+			device_count++;
+	spin_unlock_bh(&zcrypt_device_lock);
+	return device_count;
+}
+
+/**
+ * zcrypt_ica_status(): Old, depracted combi status call.
+ *
+ * Old, deprecated combi status call.
+ */
+static long zcrypt_ica_status(struct file *filp, unsigned long arg)
+{
+	struct ica_z90_status *pstat;
+	int ret;
+
+	pstat = kzalloc(sizeof(*pstat), GFP_KERNEL);
+	if (!pstat)
+		return -ENOMEM;
+	pstat->totalcount = zcrypt_device_count;
+	pstat->leedslitecount = zcrypt_count_type(ZCRYPT_PCICA);
+	pstat->leeds2count = zcrypt_count_type(ZCRYPT_PCICC);
+	pstat->requestqWaitCount = zcrypt_requestq_count();
+	pstat->pendingqWaitCount = zcrypt_pendingq_count();
+	pstat->totalOpenCount = atomic_read(&zcrypt_open_count);
+	pstat->cryptoDomain = ap_domain_index;
+	zcrypt_status_mask(pstat->status);
+	zcrypt_qdepth_mask(pstat->qdepth);
+	ret = 0;
+	if (copy_to_user((void __user *) arg, pstat, sizeof(*pstat)))
+		ret = -EFAULT;
+	kfree(pstat);
+	return ret;
+}
+
+static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
+				  unsigned long arg)
+{
+	int rc;
+
+	switch (cmd) {
+	case ICARSAMODEXPO: {
+		struct ica_rsa_modexpo __user *umex = (void __user *) arg;
+		struct ica_rsa_modexpo mex;
+		if (copy_from_user(&mex, umex, sizeof(mex)))
+			return -EFAULT;
+		do {
+			rc = zcrypt_rsa_modexpo(&mex);
+		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_rsa_modexpo(&mex);
+			} while (rc == -EAGAIN);
+		if (rc)
+			return rc;
+		return put_user(mex.outputdatalength, &umex->outputdatalength);
+	}
+	case ICARSACRT: {
+		struct ica_rsa_modexpo_crt __user *ucrt = (void __user *) arg;
+		struct ica_rsa_modexpo_crt crt;
+		if (copy_from_user(&crt, ucrt, sizeof(crt)))
+			return -EFAULT;
+		do {
+			rc = zcrypt_rsa_crt(&crt);
+		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_rsa_crt(&crt);
+			} while (rc == -EAGAIN);
+		if (rc)
+			return rc;
+		return put_user(crt.outputdatalength, &ucrt->outputdatalength);
+	}
+	case ZSECSENDCPRB: {
+		struct ica_xcRB __user *uxcRB = (void __user *) arg;
+		struct ica_xcRB xcRB;
+		if (copy_from_user(&xcRB, uxcRB, sizeof(xcRB)))
+			return -EFAULT;
+		do {
+			rc = zcrypt_send_cprb(&xcRB);
+		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_send_cprb(&xcRB);
+			} while (rc == -EAGAIN);
+		if (copy_to_user(uxcRB, &xcRB, sizeof(xcRB)))
+			return -EFAULT;
+		return rc;
+	}
+	case ZSENDEP11CPRB: {
+		struct ep11_urb __user *uxcrb = (void __user *)arg;
+		struct ep11_urb xcrb;
+		if (copy_from_user(&xcrb, uxcrb, sizeof(xcrb)))
+			return -EFAULT;
+		do {
+			rc = zcrypt_send_ep11_cprb(&xcrb);
+		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_send_ep11_cprb(&xcrb);
+			} while (rc == -EAGAIN);
+		if (copy_to_user(uxcrb, &xcrb, sizeof(xcrb)))
+			return -EFAULT;
+		return rc;
+	}
+	case Z90STAT_STATUS_MASK: {
+		char status[AP_DEVICES];
+		zcrypt_status_mask(status);
+		if (copy_to_user((char __user *) arg, status,
+				 sizeof(char) * AP_DEVICES))
+			return -EFAULT;
+		return 0;
+	}
+	case Z90STAT_QDEPTH_MASK: {
+		char qdepth[AP_DEVICES];
+		zcrypt_qdepth_mask(qdepth);
+		if (copy_to_user((char __user *) arg, qdepth,
+				 sizeof(char) * AP_DEVICES))
+			return -EFAULT;
+		return 0;
+	}
+	case Z90STAT_PERDEV_REQCNT: {
+		int reqcnt[AP_DEVICES];
+		zcrypt_perdev_reqcnt(reqcnt);
+		if (copy_to_user((int __user *) arg, reqcnt,
+				 sizeof(int) * AP_DEVICES))
+			return -EFAULT;
+		return 0;
+	}
+	case Z90STAT_REQUESTQ_COUNT:
+		return put_user(zcrypt_requestq_count(), (int __user *) arg);
+	case Z90STAT_PENDINGQ_COUNT:
+		return put_user(zcrypt_pendingq_count(), (int __user *) arg);
+	case Z90STAT_TOTALOPEN_COUNT:
+		return put_user(atomic_read(&zcrypt_open_count),
+				(int __user *) arg);
+	case Z90STAT_DOMAIN_INDEX:
+		return put_user(ap_domain_index, (int __user *) arg);
+	/*
+	 * Deprecated ioctls. Don't add another device count ioctl,
+	 * you can count them yourself in the user space with the
+	 * output of the Z90STAT_STATUS_MASK ioctl.
+	 */
+	case ICAZ90STATUS:
+		return zcrypt_ica_status(filp, arg);
+	case Z90STAT_TOTALCOUNT:
+		return put_user(zcrypt_device_count, (int __user *) arg);
+	case Z90STAT_PCICACOUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_PCICA),
+				(int __user *) arg);
+	case Z90STAT_PCICCCOUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_PCICC),
+				(int __user *) arg);
+	case Z90STAT_PCIXCCMCL2COUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL2),
+				(int __user *) arg);
+	case Z90STAT_PCIXCCMCL3COUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL3),
+				(int __user *) arg);
+	case Z90STAT_PCIXCCCOUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL2) +
+				zcrypt_count_type(ZCRYPT_PCIXCC_MCL3),
+				(int __user *) arg);
+	case Z90STAT_CEX2CCOUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_CEX2C),
+				(int __user *) arg);
+	case Z90STAT_CEX2ACOUNT:
+		return put_user(zcrypt_count_type(ZCRYPT_CEX2A),
+				(int __user *) arg);
+	default:
+		/* unknown ioctl number */
+		return -ENOIOCTLCMD;
+	}
+}
+
+#ifdef CONFIG_COMPAT
+/*
+ * ioctl32 conversion routines
+ */
+struct compat_ica_rsa_modexpo {
+	compat_uptr_t	inputdata;
+	unsigned int	inputdatalength;
+	compat_uptr_t	outputdata;
+	unsigned int	outputdatalength;
+	compat_uptr_t	b_key;
+	compat_uptr_t	n_modulus;
+};
+
+static long trans_modexpo32(struct file *filp, unsigned int cmd,
+			    unsigned long arg)
+{
+	struct compat_ica_rsa_modexpo __user *umex32 = compat_ptr(arg);
+	struct compat_ica_rsa_modexpo mex32;
+	struct ica_rsa_modexpo mex64;
+	long rc;
+
+	if (copy_from_user(&mex32, umex32, sizeof(mex32)))
+		return -EFAULT;
+	mex64.inputdata = compat_ptr(mex32.inputdata);
+	mex64.inputdatalength = mex32.inputdatalength;
+	mex64.outputdata = compat_ptr(mex32.outputdata);
+	mex64.outputdatalength = mex32.outputdatalength;
+	mex64.b_key = compat_ptr(mex32.b_key);
+	mex64.n_modulus = compat_ptr(mex32.n_modulus);
+	do {
+		rc = zcrypt_rsa_modexpo(&mex64);
+	} while (rc == -EAGAIN);
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_rsa_modexpo(&mex64);
+		} while (rc == -EAGAIN);
+	if (rc)
+		return rc;
+	return put_user(mex64.outputdatalength,
+			&umex32->outputdatalength);
+}
+
+struct compat_ica_rsa_modexpo_crt {
+	compat_uptr_t	inputdata;
+	unsigned int	inputdatalength;
+	compat_uptr_t	outputdata;
+	unsigned int	outputdatalength;
+	compat_uptr_t	bp_key;
+	compat_uptr_t	bq_key;
+	compat_uptr_t	np_prime;
+	compat_uptr_t	nq_prime;
+	compat_uptr_t	u_mult_inv;
+};
+
+static long trans_modexpo_crt32(struct file *filp, unsigned int cmd,
+				unsigned long arg)
+{
+	struct compat_ica_rsa_modexpo_crt __user *ucrt32 = compat_ptr(arg);
+	struct compat_ica_rsa_modexpo_crt crt32;
+	struct ica_rsa_modexpo_crt crt64;
+	long rc;
+
+	if (copy_from_user(&crt32, ucrt32, sizeof(crt32)))
+		return -EFAULT;
+	crt64.inputdata = compat_ptr(crt32.inputdata);
+	crt64.inputdatalength = crt32.inputdatalength;
+	crt64.outputdata=  compat_ptr(crt32.outputdata);
+	crt64.outputdatalength = crt32.outputdatalength;
+	crt64.bp_key = compat_ptr(crt32.bp_key);
+	crt64.bq_key = compat_ptr(crt32.bq_key);
+	crt64.np_prime = compat_ptr(crt32.np_prime);
+	crt64.nq_prime = compat_ptr(crt32.nq_prime);
+	crt64.u_mult_inv = compat_ptr(crt32.u_mult_inv);
+	do {
+		rc = zcrypt_rsa_crt(&crt64);
+	} while (rc == -EAGAIN);
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_rsa_crt(&crt64);
+		} while (rc == -EAGAIN);
+	if (rc)
+		return rc;
+	return put_user(crt64.outputdatalength,
+			&ucrt32->outputdatalength);
+}
+
+struct compat_ica_xcRB {
+	unsigned short	agent_ID;
+	unsigned int	user_defined;
+	unsigned short	request_ID;
+	unsigned int	request_control_blk_length;
+	unsigned char	padding1[16 - sizeof (compat_uptr_t)];
+	compat_uptr_t	request_control_blk_addr;
+	unsigned int	request_data_length;
+	char		padding2[16 - sizeof (compat_uptr_t)];
+	compat_uptr_t	request_data_address;
+	unsigned int	reply_control_blk_length;
+	char		padding3[16 - sizeof (compat_uptr_t)];
+	compat_uptr_t	reply_control_blk_addr;
+	unsigned int	reply_data_length;
+	char		padding4[16 - sizeof (compat_uptr_t)];
+	compat_uptr_t	reply_data_addr;
+	unsigned short	priority_window;
+	unsigned int	status;
+} __attribute__((packed));
+
+static long trans_xcRB32(struct file *filp, unsigned int cmd,
+			 unsigned long arg)
+{
+	struct compat_ica_xcRB __user *uxcRB32 = compat_ptr(arg);
+	struct compat_ica_xcRB xcRB32;
+	struct ica_xcRB xcRB64;
+	long rc;
+
+	if (copy_from_user(&xcRB32, uxcRB32, sizeof(xcRB32)))
+		return -EFAULT;
+	xcRB64.agent_ID = xcRB32.agent_ID;
+	xcRB64.user_defined = xcRB32.user_defined;
+	xcRB64.request_ID = xcRB32.request_ID;
+	xcRB64.request_control_blk_length =
+		xcRB32.request_control_blk_length;
+	xcRB64.request_control_blk_addr =
+		compat_ptr(xcRB32.request_control_blk_addr);
+	xcRB64.request_data_length =
+		xcRB32.request_data_length;
+	xcRB64.request_data_address =
+		compat_ptr(xcRB32.request_data_address);
+	xcRB64.reply_control_blk_length =
+		xcRB32.reply_control_blk_length;
+	xcRB64.reply_control_blk_addr =
+		compat_ptr(xcRB32.reply_control_blk_addr);
+	xcRB64.reply_data_length = xcRB32.reply_data_length;
+	xcRB64.reply_data_addr =
+		compat_ptr(xcRB32.reply_data_addr);
+	xcRB64.priority_window = xcRB32.priority_window;
+	xcRB64.status = xcRB32.status;
+	do {
+		rc = zcrypt_send_cprb(&xcRB64);
+	} while (rc == -EAGAIN);
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_send_cprb(&xcRB64);
+		} while (rc == -EAGAIN);
+	xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length;
+	xcRB32.reply_data_length = xcRB64.reply_data_length;
+	xcRB32.status = xcRB64.status;
+	if (copy_to_user(uxcRB32, &xcRB32, sizeof(xcRB32)))
+			return -EFAULT;
+	return rc;
+}
+
+static long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd,
+			 unsigned long arg)
+{
+	if (cmd == ICARSAMODEXPO)
+		return trans_modexpo32(filp, cmd, arg);
+	if (cmd == ICARSACRT)
+		return trans_modexpo_crt32(filp, cmd, arg);
+	if (cmd == ZSECSENDCPRB)
+		return trans_xcRB32(filp, cmd, arg);
+	return zcrypt_unlocked_ioctl(filp, cmd, arg);
+}
+#endif
+
+/*
+ * Misc device file operations.
+ */
+static const struct file_operations zcrypt_fops = {
+	.owner		= THIS_MODULE,
+	.read		= zcrypt_read,
+	.write		= zcrypt_write,
+	.unlocked_ioctl	= zcrypt_unlocked_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= zcrypt_compat_ioctl,
+#endif
+	.open		= zcrypt_open,
+	.release	= zcrypt_release,
+	.llseek		= no_llseek,
+};
+
+/*
+ * Misc device.
+ */
+static struct miscdevice zcrypt_misc_device = {
+	.minor	    = MISC_DYNAMIC_MINOR,
+	.name	    = "z90crypt",
+	.fops	    = &zcrypt_fops,
+};
+
+/*
+ * Deprecated /proc entry support.
+ */
+static struct proc_dir_entry *zcrypt_entry;
+
+static void sprintcl(struct seq_file *m, unsigned char *addr, unsigned int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		seq_printf(m, "%01x", (unsigned int) addr[i]);
+	seq_putc(m, ' ');
+}
+
+static void sprintrw(struct seq_file *m, unsigned char *addr, unsigned int len)
+{
+	int inl, c, cx;
+
+	seq_printf(m, "	   ");
+	inl = 0;
+	for (c = 0; c < (len / 16); c++) {
+		sprintcl(m, addr+inl, 16);
+		inl += 16;
+	}
+	cx = len%16;
+	if (cx) {
+		sprintcl(m, addr+inl, cx);
+		inl += cx;
+	}
+	seq_putc(m, '\n');
+}
+
+static void sprinthx(unsigned char *title, struct seq_file *m,
+		     unsigned char *addr, unsigned int len)
+{
+	int inl, r, rx;
+
+	seq_printf(m, "\n%s\n", title);
+	inl = 0;
+	for (r = 0; r < (len / 64); r++) {
+		sprintrw(m, addr+inl, 64);
+		inl += 64;
+	}
+	rx = len % 64;
+	if (rx) {
+		sprintrw(m, addr+inl, rx);
+		inl += rx;
+	}
+	seq_putc(m, '\n');
+}
+
+static void sprinthx4(unsigned char *title, struct seq_file *m,
+		      unsigned int *array, unsigned int len)
+{
+	seq_printf(m, "\n%s\n", title);
+	seq_hex_dump(m, "    ", DUMP_PREFIX_NONE, 32, 4, array, len, false);
+	seq_putc(m, '\n');
+}
+
+static int zcrypt_proc_show(struct seq_file *m, void *v)
+{
+	char workarea[sizeof(int) * AP_DEVICES];
+
+	seq_printf(m, "\nzcrypt version: %d.%d.%d\n",
+		   ZCRYPT_VERSION, ZCRYPT_RELEASE, ZCRYPT_VARIANT);
+	seq_printf(m, "Cryptographic domain: %d\n", ap_domain_index);
+	seq_printf(m, "Total device count: %d\n", zcrypt_device_count);
+	seq_printf(m, "PCICA count: %d\n", zcrypt_count_type(ZCRYPT_PCICA));
+	seq_printf(m, "PCICC count: %d\n", zcrypt_count_type(ZCRYPT_PCICC));
+	seq_printf(m, "PCIXCC MCL2 count: %d\n",
+		   zcrypt_count_type(ZCRYPT_PCIXCC_MCL2));
+	seq_printf(m, "PCIXCC MCL3 count: %d\n",
+		   zcrypt_count_type(ZCRYPT_PCIXCC_MCL3));
+	seq_printf(m, "CEX2C count: %d\n", zcrypt_count_type(ZCRYPT_CEX2C));
+	seq_printf(m, "CEX2A count: %d\n", zcrypt_count_type(ZCRYPT_CEX2A));
+	seq_printf(m, "CEX3C count: %d\n", zcrypt_count_type(ZCRYPT_CEX3C));
+	seq_printf(m, "CEX3A count: %d\n", zcrypt_count_type(ZCRYPT_CEX3A));
+	seq_printf(m, "requestq count: %d\n", zcrypt_requestq_count());
+	seq_printf(m, "pendingq count: %d\n", zcrypt_pendingq_count());
+	seq_printf(m, "Total open handles: %d\n\n",
+		   atomic_read(&zcrypt_open_count));
+	zcrypt_status_mask(workarea);
+	sprinthx("Online devices: 1=PCICA 2=PCICC 3=PCIXCC(MCL2) "
+		 "4=PCIXCC(MCL3) 5=CEX2C 6=CEX2A 7=CEX3C 8=CEX3A",
+		 m, workarea, AP_DEVICES);
+	zcrypt_qdepth_mask(workarea);
+	sprinthx("Waiting work element counts", m, workarea, AP_DEVICES);
+	zcrypt_perdev_reqcnt((int *) workarea);
+	sprinthx4("Per-device successfully completed request counts",
+		  m, (unsigned int *) workarea, AP_DEVICES);
+	return 0;
+}
+
+static int zcrypt_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, zcrypt_proc_show, NULL);
+}
+
+static void zcrypt_disable_card(int index)
+{
+	struct zcrypt_device *zdev;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list)
+		if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) {
+			zdev->online = 0;
+			ap_flush_queue(zdev->ap_dev);
+			break;
+		}
+	spin_unlock_bh(&zcrypt_device_lock);
+}
+
+static void zcrypt_enable_card(int index)
+{
+	struct zcrypt_device *zdev;
+
+	spin_lock_bh(&zcrypt_device_lock);
+	list_for_each_entry(zdev, &zcrypt_device_list, list)
+		if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) {
+			zdev->online = 1;
+			break;
+		}
+	spin_unlock_bh(&zcrypt_device_lock);
+}
+
+static ssize_t zcrypt_proc_write(struct file *file, const char __user *buffer,
+				 size_t count, loff_t *pos)
+{
+	unsigned char *lbuf, *ptr;
+	size_t local_count;
+	int j;
+
+	if (count <= 0)
+		return 0;
+
+#define LBUFSIZE 1200UL
+	lbuf = kmalloc(LBUFSIZE, GFP_KERNEL);
+	if (!lbuf)
+		return 0;
+
+	local_count = min(LBUFSIZE - 1, count);
+	if (copy_from_user(lbuf, buffer, local_count) != 0) {
+		kfree(lbuf);
+		return -EFAULT;
+	}
+	lbuf[local_count] = '\0';
+
+	ptr = strstr(lbuf, "Online devices");
+	if (!ptr)
+		goto out;
+	ptr = strstr(ptr, "\n");
+	if (!ptr)
+		goto out;
+	ptr++;
+
+	if (strstr(ptr, "Waiting work element counts") == NULL)
+		goto out;
+
+	for (j = 0; j < 64 && *ptr; ptr++) {
+		/*
+		 * '0' for no device, '1' for PCICA, '2' for PCICC,
+		 * '3' for PCIXCC_MCL2, '4' for PCIXCC_MCL3,
+		 * '5' for CEX2C and '6' for CEX2A'
+		 * '7' for CEX3C and '8' for CEX3A
+		 */
+		if (*ptr >= '0' && *ptr <= '8')
+			j++;
+		else if (*ptr == 'd' || *ptr == 'D')
+			zcrypt_disable_card(j++);
+		else if (*ptr == 'e' || *ptr == 'E')
+			zcrypt_enable_card(j++);
+		else if (*ptr != ' ' && *ptr != '\t')
+			break;
+	}
+out:
+	kfree(lbuf);
+	return count;
+}
+
+static const struct file_operations zcrypt_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= zcrypt_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= zcrypt_proc_write,
+};
+
+static int zcrypt_rng_device_count;
+static u32 *zcrypt_rng_buffer;
+static int zcrypt_rng_buffer_index;
+static DEFINE_MUTEX(zcrypt_rng_mutex);
+
+static int zcrypt_rng_data_read(struct hwrng *rng, u32 *data)
+{
+	int rc;
+
+	/*
+	 * We don't need locking here because the RNG API guarantees serialized
+	 * read method calls.
+	 */
+	if (zcrypt_rng_buffer_index == 0) {
+		rc = zcrypt_rng((char *) zcrypt_rng_buffer);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			rc = zcrypt_rng((char *) zcrypt_rng_buffer);
+		if (rc < 0)
+			return -EIO;
+		zcrypt_rng_buffer_index = rc / sizeof *data;
+	}
+	*data = zcrypt_rng_buffer[--zcrypt_rng_buffer_index];
+	return sizeof *data;
+}
+
+static struct hwrng zcrypt_rng_dev = {
+	.name		= "zcrypt",
+	.data_read	= zcrypt_rng_data_read,
+	.quality	= 990,
+};
+
+static int zcrypt_rng_device_add(void)
+{
+	int rc = 0;
+
+	mutex_lock(&zcrypt_rng_mutex);
+	if (zcrypt_rng_device_count == 0) {
+		zcrypt_rng_buffer = (u32 *) get_zeroed_page(GFP_KERNEL);
+		if (!zcrypt_rng_buffer) {
+			rc = -ENOMEM;
+			goto out;
+		}
+		zcrypt_rng_buffer_index = 0;
+		if (!zcrypt_hwrng_seed)
+			zcrypt_rng_dev.quality = 0;
+		rc = hwrng_register(&zcrypt_rng_dev);
+		if (rc)
+			goto out_free;
+		zcrypt_rng_device_count = 1;
+	} else
+		zcrypt_rng_device_count++;
+	mutex_unlock(&zcrypt_rng_mutex);
+	return 0;
+
+out_free:
+	free_page((unsigned long) zcrypt_rng_buffer);
+out:
+	mutex_unlock(&zcrypt_rng_mutex);
+	return rc;
+}
+
+static void zcrypt_rng_device_remove(void)
+{
+	mutex_lock(&zcrypt_rng_mutex);
+	zcrypt_rng_device_count--;
+	if (zcrypt_rng_device_count == 0) {
+		hwrng_unregister(&zcrypt_rng_dev);
+		free_page((unsigned long) zcrypt_rng_buffer);
+	}
+	mutex_unlock(&zcrypt_rng_mutex);
+}
+
+int __init zcrypt_debug_init(void)
+{
+	debugfs_root = debugfs_create_dir("zcrypt", NULL);
+
+	zcrypt_dbf_common = debug_register("zcrypt_common", 1, 1, 16);
+	debug_register_view(zcrypt_dbf_common, &debug_hex_ascii_view);
+	debug_set_level(zcrypt_dbf_common, DBF_ERR);
+
+	zcrypt_dbf_devices = debug_register("zcrypt_devices", 1, 1, 16);
+	debug_register_view(zcrypt_dbf_devices, &debug_hex_ascii_view);
+	debug_set_level(zcrypt_dbf_devices, DBF_ERR);
+
+	return 0;
+}
+
+void zcrypt_debug_exit(void)
+{
+	debugfs_remove(debugfs_root);
+	if (zcrypt_dbf_common)
+		debug_unregister(zcrypt_dbf_common);
+	if (zcrypt_dbf_devices)
+		debug_unregister(zcrypt_dbf_devices);
+}
+
+/**
+ * zcrypt_api_init(): Module initialization.
+ *
+ * The module initialization code.
+ */
+int __init zcrypt_api_init(void)
+{
+	int rc;
+
+	rc = zcrypt_debug_init();
+	if (rc)
+		goto out;
+
+	atomic_set(&zcrypt_rescan_req, 0);
+
+	/* Register the request sprayer. */
+	rc = misc_register(&zcrypt_misc_device);
+	if (rc < 0)
+		goto out;
+
+	/* Set up the proc file system */
+	zcrypt_entry = proc_create("driver/z90crypt", 0644, NULL, &zcrypt_proc_fops);
+	if (!zcrypt_entry) {
+		rc = -ENOMEM;
+		goto out_misc;
+	}
+
+	return 0;
+
+out_misc:
+	misc_deregister(&zcrypt_misc_device);
+out:
+	return rc;
+}
+
+/**
+ * zcrypt_api_exit(): Module termination.
+ *
+ * The module termination code.
+ */
+void zcrypt_api_exit(void)
+{
+	remove_proc_entry("driver/z90crypt", NULL);
+	misc_deregister(&zcrypt_misc_device);
+	zcrypt_debug_exit();
+}
+
+module_init(zcrypt_api_init);
+module_exit(zcrypt_api_exit);
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h
new file mode 100644
index 0000000..38618f0
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -0,0 +1,141 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *	       Cornelia Huck <cornelia.huck@de.ibm.com>
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#ifndef _ZCRYPT_API_H_
+#define _ZCRYPT_API_H_
+
+#include <linux/atomic.h>
+#include <asm/debug.h>
+#include <asm/zcrypt.h>
+#include "ap_bus.h"
+
+/* deprecated status calls */
+#define ICAZ90STATUS		_IOR(ZCRYPT_IOCTL_MAGIC, 0x10, struct ica_z90_status)
+#define Z90STAT_PCIXCCCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x43, int)
+
+/**
+ * This structure is deprecated and the corresponding ioctl() has been
+ * replaced with individual ioctl()s for each piece of data!
+ */
+struct ica_z90_status {
+	int totalcount;
+	int leedslitecount; // PCICA
+	int leeds2count;    // PCICC
+	// int PCIXCCCount; is not in struct for backward compatibility
+	int requestqWaitCount;
+	int pendingqWaitCount;
+	int totalOpenCount;
+	int cryptoDomain;
+	// status: 0=not there, 1=PCICA, 2=PCICC, 3=PCIXCC_MCL2, 4=PCIXCC_MCL3,
+	//	   5=CEX2C
+	unsigned char status[64];
+	// qdepth: # work elements waiting for each device
+	unsigned char qdepth[64];
+};
+
+/**
+ * device type for an actual device is either PCICA, PCICC, PCIXCC_MCL2,
+ * PCIXCC_MCL3, CEX2C, or CEX2A
+ *
+ * NOTE: PCIXCC_MCL3 refers to a PCIXCC with May 2004 version of Licensed
+ *	 Internal Code (LIC) (EC J12220 level 29).
+ *	 PCIXCC_MCL2 refers to any LIC before this level.
+ */
+#define ZCRYPT_PCICA		1
+#define ZCRYPT_PCICC		2
+#define ZCRYPT_PCIXCC_MCL2	3
+#define ZCRYPT_PCIXCC_MCL3	4
+#define ZCRYPT_CEX2C		5
+#define ZCRYPT_CEX2A		6
+#define ZCRYPT_CEX3C		7
+#define ZCRYPT_CEX3A		8
+#define ZCRYPT_CEX4	       10
+#define ZCRYPT_CEX5	       11
+
+/**
+ * Large random numbers are pulled in 4096 byte chunks from the crypto cards
+ * and stored in a page. Be careful when increasing this buffer due to size
+ * limitations for AP requests.
+ */
+#define ZCRYPT_RNG_BUFFER_SIZE	4096
+
+struct zcrypt_device;
+
+struct zcrypt_ops {
+	long (*rsa_modexpo)(struct zcrypt_device *, struct ica_rsa_modexpo *);
+	long (*rsa_modexpo_crt)(struct zcrypt_device *,
+				struct ica_rsa_modexpo_crt *);
+	long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *);
+	long (*send_ep11_cprb)(struct zcrypt_device *, struct ep11_urb *);
+	long (*rng)(struct zcrypt_device *, char *);
+	struct list_head list;		/* zcrypt ops list. */
+	struct module *owner;
+	int variant;
+	char name[128];
+};
+
+struct zcrypt_device {
+	struct list_head list;		/* Device list. */
+	spinlock_t lock;		/* Per device lock. */
+	struct kref refcount;		/* device refcounting */
+	struct ap_device *ap_dev;	/* The "real" ap device. */
+	struct zcrypt_ops *ops;		/* Crypto operations. */
+	int online;			/* User online/offline */
+
+	int user_space_type;		/* User space device id. */
+	char *type_string;		/* User space device name. */
+	int min_mod_size;		/* Min number of bits. */
+	int max_mod_size;		/* Max number of bits. */
+	int short_crt;			/* Card has crt length restriction. */
+	int speed_rating;		/* Speed of the crypto device. */
+
+	int request_count;		/* # current requests. */
+
+	struct ap_message reply;	/* Per-device reply structure. */
+	int max_exp_bit_length;
+
+	debug_info_t *dbf_area;		/* debugging */
+};
+
+/* transport layer rescanning */
+extern atomic_t zcrypt_rescan_req;
+
+struct zcrypt_device *zcrypt_device_alloc(size_t);
+void zcrypt_device_free(struct zcrypt_device *);
+void zcrypt_device_get(struct zcrypt_device *);
+int zcrypt_device_put(struct zcrypt_device *);
+int zcrypt_device_register(struct zcrypt_device *);
+void zcrypt_device_unregister(struct zcrypt_device *);
+void zcrypt_msgtype_register(struct zcrypt_ops *);
+void zcrypt_msgtype_unregister(struct zcrypt_ops *);
+struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *, int);
+void zcrypt_msgtype_release(struct zcrypt_ops *);
+int zcrypt_api_init(void);
+void zcrypt_api_exit(void);
+
+#endif /* _ZCRYPT_API_H_ */
diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h
new file mode 100644
index 0000000..ca0cdbe
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cca_key.h
@@ -0,0 +1,348 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2006
+ *  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.
+ */
+
+#ifndef _ZCRYPT_CCA_KEY_H_
+#define _ZCRYPT_CCA_KEY_H_
+
+struct T6_keyBlock_hdr {
+	unsigned short blen;
+	unsigned short ulen;
+	unsigned short flags;
+};
+
+/**
+ * mapping for the cca private ME key token.
+ * Three parts of interest here: the header, the private section and
+ * the public section.
+ *
+ * mapping for the cca key token header
+ */
+struct cca_token_hdr {
+	unsigned char  token_identifier;
+	unsigned char  version;
+	unsigned short token_length;
+	unsigned char  reserved[4];
+} __attribute__((packed));
+
+#define CCA_TKN_HDR_ID_EXT 0x1E
+
+/**
+ * mapping for the cca private ME section
+ */
+struct cca_private_ext_ME_sec {
+	unsigned char  section_identifier;
+	unsigned char  version;
+	unsigned short section_length;
+	unsigned char  private_key_hash[20];
+	unsigned char  reserved1[4];
+	unsigned char  key_format;
+	unsigned char  reserved2;
+	unsigned char  key_name_hash[20];
+	unsigned char  key_use_flags[4];
+	unsigned char  reserved3[6];
+	unsigned char  reserved4[24];
+	unsigned char  confounder[24];
+	unsigned char  exponent[128];
+	unsigned char  modulus[128];
+} __attribute__((packed));
+
+#define CCA_PVT_USAGE_ALL 0x80
+
+/**
+ * mapping for the cca public section
+ * In a private key, the modulus doesn't appear in the public
+ * section. So, an arbitrary public exponent of 0x010001 will be
+ * used, for a section length of 0x0F always.
+ */
+struct cca_public_sec {
+	unsigned char  section_identifier;
+	unsigned char  version;
+	unsigned short section_length;
+	unsigned char  reserved[2];
+	unsigned short exponent_len;
+	unsigned short modulus_bit_len;
+	unsigned short modulus_byte_len;    /* In a private key, this is 0 */
+} __attribute__((packed));
+
+/**
+ * mapping for the cca private CRT key 'token'
+ * The first three parts (the only parts considered in this release)
+ * are: the header, the private section and the public section.
+ * The header and public section are the same as for the
+ * struct cca_private_ext_ME
+ *
+ * Following the structure are the quantities p, q, dp, dq, u, pad,
+ * and modulus, in that order, where pad_len is the modulo 8
+ * complement of the residue modulo 8 of the sum of
+ * (p_len + q_len + dp_len + dq_len + u_len).
+ */
+struct cca_pvt_ext_CRT_sec {
+	unsigned char  section_identifier;
+	unsigned char  version;
+	unsigned short section_length;
+	unsigned char  private_key_hash[20];
+	unsigned char  reserved1[4];
+	unsigned char  key_format;
+	unsigned char  reserved2;
+	unsigned char  key_name_hash[20];
+	unsigned char  key_use_flags[4];
+	unsigned short p_len;
+	unsigned short q_len;
+	unsigned short dp_len;
+	unsigned short dq_len;
+	unsigned short u_len;
+	unsigned short mod_len;
+	unsigned char  reserved3[4];
+	unsigned short pad_len;
+	unsigned char  reserved4[52];
+	unsigned char  confounder[8];
+} __attribute__((packed));
+
+#define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08
+#define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40
+
+/**
+ * Set up private key fields of a type6 MEX message.
+ * Note that all numerics in the key token are big-endian,
+ * while the entries in the key block header are little-endian.
+ *
+ * @mex: pointer to user input data
+ * @p: pointer to memory area for the key
+ *
+ * Returns the size of the key area or -EFAULT
+ */
+static inline int zcrypt_type6_mex_key_de(struct ica_rsa_modexpo *mex,
+					  void *p, int big_endian)
+{
+	static struct cca_token_hdr static_pvt_me_hdr = {
+		.token_identifier	=  0x1E,
+		.token_length		=  0x0183,
+	};
+	static struct cca_private_ext_ME_sec static_pvt_me_sec = {
+		.section_identifier	=  0x02,
+		.section_length		=  0x016C,
+		.key_use_flags		= {0x80,0x00,0x00,0x00},
+	};
+	static struct cca_public_sec static_pub_me_sec = {
+		.section_identifier	=  0x04,
+		.section_length		=  0x000F,
+		.exponent_len		=  0x0003,
+	};
+	static char pk_exponent[3] = { 0x01, 0x00, 0x01 };
+	struct {
+		struct T6_keyBlock_hdr t6_hdr;
+		struct cca_token_hdr pvtMeHdr;
+		struct cca_private_ext_ME_sec pvtMeSec;
+		struct cca_public_sec pubMeSec;
+		char exponent[3];
+	} __attribute__((packed)) *key = p;
+	unsigned char *temp;
+
+	memset(key, 0, sizeof(*key));
+
+	if (big_endian) {
+		key->t6_hdr.blen = cpu_to_be16(0x189);
+		key->t6_hdr.ulen = cpu_to_be16(0x189 - 2);
+	} else {
+		key->t6_hdr.blen = cpu_to_le16(0x189);
+		key->t6_hdr.ulen = cpu_to_le16(0x189 - 2);
+	}
+	key->pvtMeHdr = static_pvt_me_hdr;
+	key->pvtMeSec = static_pvt_me_sec;
+	key->pubMeSec = static_pub_me_sec;
+	/*
+	 * In a private key, the modulus doesn't appear in the public
+	 * section. So, an arbitrary public exponent of 0x010001 will be
+	 * used.
+	 */
+	memcpy(key->exponent, pk_exponent, 3);
+
+	/* key parameter block */
+	temp = key->pvtMeSec.exponent +
+		sizeof(key->pvtMeSec.exponent) - mex->inputdatalength;
+	if (copy_from_user(temp, mex->b_key, mex->inputdatalength))
+		return -EFAULT;
+
+	/* modulus */
+	temp = key->pvtMeSec.modulus +
+		sizeof(key->pvtMeSec.modulus) - mex->inputdatalength;
+	if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength))
+		return -EFAULT;
+	key->pubMeSec.modulus_bit_len = 8 * mex->inputdatalength;
+	return sizeof(*key);
+}
+
+/**
+ * Set up private key fields of a type6 MEX message. The _pad variant
+ * strips leading zeroes from the b_key.
+ * Note that all numerics in the key token are big-endian,
+ * while the entries in the key block header are little-endian.
+ *
+ * @mex: pointer to user input data
+ * @p: pointer to memory area for the key
+ *
+ * Returns the size of the key area or -EFAULT
+ */
+static inline int zcrypt_type6_mex_key_en(struct ica_rsa_modexpo *mex,
+					  void *p, int big_endian)
+{
+	static struct cca_token_hdr static_pub_hdr = {
+		.token_identifier	=  0x1E,
+	};
+	static struct cca_public_sec static_pub_sec = {
+		.section_identifier	=  0x04,
+	};
+	struct {
+		struct T6_keyBlock_hdr t6_hdr;
+		struct cca_token_hdr pubHdr;
+		struct cca_public_sec pubSec;
+		char exponent[0];
+	} __attribute__((packed)) *key = p;
+	unsigned char *temp;
+	int i;
+
+	memset(key, 0, sizeof(*key));
+
+	key->pubHdr = static_pub_hdr;
+	key->pubSec = static_pub_sec;
+
+	/* key parameter block */
+	temp = key->exponent;
+	if (copy_from_user(temp, mex->b_key, mex->inputdatalength))
+		return -EFAULT;
+	/* Strip leading zeroes from b_key. */
+	for (i = 0; i < mex->inputdatalength; i++)
+		if (temp[i])
+			break;
+	if (i >= mex->inputdatalength)
+		return -EINVAL;
+	memmove(temp, temp + i, mex->inputdatalength - i);
+	temp += mex->inputdatalength - i;
+	/* modulus */
+	if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength))
+		return -EFAULT;
+
+	key->pubSec.modulus_bit_len = 8 * mex->inputdatalength;
+	key->pubSec.modulus_byte_len = mex->inputdatalength;
+	key->pubSec.exponent_len = mex->inputdatalength - i;
+	key->pubSec.section_length = sizeof(key->pubSec) +
+					2*mex->inputdatalength - i;
+	key->pubHdr.token_length =
+		key->pubSec.section_length + sizeof(key->pubHdr);
+	if (big_endian) {
+		key->t6_hdr.ulen = cpu_to_be16(key->pubHdr.token_length + 4);
+		key->t6_hdr.blen = cpu_to_be16(key->pubHdr.token_length + 6);
+	} else {
+		key->t6_hdr.ulen = cpu_to_le16(key->pubHdr.token_length + 4);
+		key->t6_hdr.blen = cpu_to_le16(key->pubHdr.token_length + 6);
+	}
+	return sizeof(*key) + 2*mex->inputdatalength - i;
+}
+
+/**
+ * Set up private key fields of a type6 CRT message.
+ * Note that all numerics in the key token are big-endian,
+ * while the entries in the key block header are little-endian.
+ *
+ * @mex: pointer to user input data
+ * @p: pointer to memory area for the key
+ *
+ * Returns the size of the key area or -EFAULT
+ */
+static inline int zcrypt_type6_crt_key(struct ica_rsa_modexpo_crt *crt,
+				       void *p, int big_endian)
+{
+	static struct cca_public_sec static_cca_pub_sec = {
+		.section_identifier = 4,
+		.section_length = 0x000f,
+		.exponent_len = 0x0003,
+	};
+	static char pk_exponent[3] = { 0x01, 0x00, 0x01 };
+	struct {
+		struct T6_keyBlock_hdr t6_hdr;
+		struct cca_token_hdr token;
+		struct cca_pvt_ext_CRT_sec pvt;
+		char key_parts[0];
+	} __attribute__((packed)) *key = p;
+	struct cca_public_sec *pub;
+	int short_len, long_len, pad_len, key_len, size;
+
+	memset(key, 0, sizeof(*key));
+
+	short_len = (crt->inputdatalength + 1) / 2;
+	long_len = short_len + 8;
+	pad_len = -(3*long_len + 2*short_len) & 7;
+	key_len = 3*long_len + 2*short_len + pad_len + crt->inputdatalength;
+	size = sizeof(*key) + key_len + sizeof(*pub) + 3;
+
+	/* parameter block.key block */
+	if (big_endian) {
+		key->t6_hdr.blen = cpu_to_be16(size);
+		key->t6_hdr.ulen = cpu_to_be16(size - 2);
+	} else {
+		key->t6_hdr.blen = cpu_to_le16(size);
+		key->t6_hdr.ulen = cpu_to_le16(size - 2);
+	}
+
+	/* key token header */
+	key->token.token_identifier = CCA_TKN_HDR_ID_EXT;
+	key->token.token_length = size - 6;
+
+	/* private section */
+	key->pvt.section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT;
+	key->pvt.section_length = sizeof(key->pvt) + key_len;
+	key->pvt.key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL;
+	key->pvt.key_use_flags[0] = CCA_PVT_USAGE_ALL;
+	key->pvt.p_len = key->pvt.dp_len = key->pvt.u_len = long_len;
+	key->pvt.q_len = key->pvt.dq_len = short_len;
+	key->pvt.mod_len = crt->inputdatalength;
+	key->pvt.pad_len = pad_len;
+
+	/* key parts */
+	if (copy_from_user(key->key_parts, crt->np_prime, long_len) ||
+	    copy_from_user(key->key_parts + long_len,
+					crt->nq_prime, short_len) ||
+	    copy_from_user(key->key_parts + long_len + short_len,
+					crt->bp_key, long_len) ||
+	    copy_from_user(key->key_parts + 2*long_len + short_len,
+					crt->bq_key, short_len) ||
+	    copy_from_user(key->key_parts + 2*long_len + 2*short_len,
+					crt->u_mult_inv, long_len))
+		return -EFAULT;
+	memset(key->key_parts + 3*long_len + 2*short_len + pad_len,
+	       0xff, crt->inputdatalength);
+	pub = (struct cca_public_sec *)(key->key_parts + key_len);
+	*pub = static_cca_pub_sec;
+	pub->modulus_bit_len = 8 * crt->inputdatalength;
+	/*
+	 * In a private key, the modulus doesn't appear in the public
+	 * section. So, an arbitrary public exponent of 0x010001 will be
+	 * used.
+	 */
+	memcpy((char *) (pub + 1), pk_exponent, 3);
+	return size;
+}
+
+#endif /* _ZCRYPT_CCA_KEY_H_ */
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
new file mode 100644
index 0000000..1e849d6
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -0,0 +1,164 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/atomic.h>
+#include <asm/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_cex2a.h"
+#include "zcrypt_msgtype50.h"
+
+#define CEX2A_MIN_MOD_SIZE	  1	/*    8 bits	*/
+#define CEX2A_MAX_MOD_SIZE	256	/* 2048 bits	*/
+#define CEX3A_MIN_MOD_SIZE	CEX2A_MIN_MOD_SIZE
+#define CEX3A_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define CEX2A_SPEED_RATING	970
+#define CEX3A_SPEED_RATING	900 /* Fixme: Needs finetuning */
+
+#define CEX2A_MAX_MESSAGE_SIZE	0x390	/* sizeof(struct type50_crb2_msg)    */
+#define CEX2A_MAX_RESPONSE_SIZE 0x110	/* max outputdatalength + type80_hdr */
+
+#define CEX3A_MAX_RESPONSE_SIZE	0x210	/* 512 bit modulus
+					 * (max outputdatalength) +
+					 * type80_hdr*/
+#define CEX3A_MAX_MESSAGE_SIZE	sizeof(struct type50_crb3_msg)
+
+#define CEX2A_CLEANUP_TIME	(15*HZ)
+#define CEX3A_CLEANUP_TIME	CEX2A_CLEANUP_TIME
+
+static struct ap_device_id zcrypt_cex2a_ids[] = {
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX2A) },
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX3A) },
+	{ /* end of list */ },
+};
+
+MODULE_DEVICE_TABLE(ap, zcrypt_cex2a_ids);
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static int zcrypt_cex2a_probe(struct ap_device *ap_dev);
+static void zcrypt_cex2a_remove(struct ap_device *ap_dev);
+
+static struct ap_driver zcrypt_cex2a_driver = {
+	.probe = zcrypt_cex2a_probe,
+	.remove = zcrypt_cex2a_remove,
+	.ids = zcrypt_cex2a_ids,
+	.request_timeout = CEX2A_CLEANUP_TIME,
+};
+
+/**
+ * Probe function for CEX2A cards. It always accepts the AP device
+ * since the bus_match already checked the hardware type.
+ * @ap_dev: pointer to the AP device.
+ */
+static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = NULL;
+	int rc = 0;
+
+	switch (ap_dev->device_type) {
+	case AP_DEVICE_TYPE_CEX2A:
+		zdev = zcrypt_device_alloc(CEX2A_MAX_RESPONSE_SIZE);
+		if (!zdev)
+			return -ENOMEM;
+		zdev->user_space_type = ZCRYPT_CEX2A;
+		zdev->type_string = "CEX2A";
+		zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
+		zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
+		zdev->short_crt = 1;
+		zdev->speed_rating = CEX2A_SPEED_RATING;
+		zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE;
+		break;
+	case AP_DEVICE_TYPE_CEX3A:
+		zdev = zcrypt_device_alloc(CEX3A_MAX_RESPONSE_SIZE);
+		if (!zdev)
+			return -ENOMEM;
+		zdev->user_space_type = ZCRYPT_CEX3A;
+		zdev->type_string = "CEX3A";
+		zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
+		zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
+		zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE;
+		if (ap_test_bit(&ap_dev->functions, AP_FUNC_MEX4K) &&
+		    ap_test_bit(&ap_dev->functions, AP_FUNC_CRT4K)) {
+			zdev->max_mod_size = CEX3A_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = CEX3A_MAX_MOD_SIZE;
+		}
+		zdev->short_crt = 1;
+		zdev->speed_rating = CEX3A_SPEED_RATING;
+		break;
+	}
+	if (!zdev)
+		return -ENODEV;
+	zdev->ops = zcrypt_msgtype_request(MSGTYPE50_NAME,
+					   MSGTYPE50_VARIANT_DEFAULT);
+	zdev->ap_dev = ap_dev;
+	zdev->online = 1;
+	ap_dev->reply = &zdev->reply;
+	ap_dev->private = zdev;
+	rc = zcrypt_device_register(zdev);
+	if (rc) {
+		ap_dev->private = NULL;
+		zcrypt_msgtype_release(zdev->ops);
+		zcrypt_device_free(zdev);
+	}
+	return rc;
+}
+
+/**
+ * This is called to remove the extended CEX2A driver information
+ * if an AP device is removed.
+ */
+static void zcrypt_cex2a_remove(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops = zdev->ops;
+
+	zcrypt_device_unregister(zdev);
+	zcrypt_msgtype_release(zops);
+}
+
+int __init zcrypt_cex2a_init(void)
+{
+	return ap_driver_register(&zcrypt_cex2a_driver, THIS_MODULE, "cex2a");
+}
+
+void __exit zcrypt_cex2a_exit(void)
+{
+	ap_driver_unregister(&zcrypt_cex2a_driver);
+}
+
+module_init(zcrypt_cex2a_init);
+module_exit(zcrypt_cex2a_exit);
diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h
new file mode 100644
index 0000000..0dce4b9
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex2a.h
@@ -0,0 +1,149 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2006
+ *  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.
+ */
+
+#ifndef _ZCRYPT_CEX2A_H_
+#define _ZCRYPT_CEX2A_H_
+
+/**
+ * The type 50 message family is associated with a CEX2A card.
+ *
+ * The four members of the family are described below.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type50_hdr {
+	unsigned char	reserved1;
+	unsigned char	msg_type_code;	/* 0x50 */
+	unsigned short	msg_len;
+	unsigned char	reserved2;
+	unsigned char	ignored;
+	unsigned short	reserved3;
+} __attribute__((packed));
+
+#define TYPE50_TYPE_CODE	0x50
+
+#define TYPE50_MEB1_FMT		0x0001
+#define TYPE50_MEB2_FMT		0x0002
+#define TYPE50_MEB3_FMT		0x0003
+#define TYPE50_CRB1_FMT		0x0011
+#define TYPE50_CRB2_FMT		0x0012
+#define TYPE50_CRB3_FMT		0x0013
+
+/* Mod-Exp, with a small modulus */
+struct type50_meb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0001 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[128];
+	unsigned char	modulus[128];
+	unsigned char	message[128];
+} __attribute__((packed));
+
+/* Mod-Exp, with a large modulus */
+struct type50_meb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0002 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[256];
+	unsigned char	modulus[256];
+	unsigned char	message[256];
+} __attribute__((packed));
+
+/* Mod-Exp, with a larger modulus */
+struct type50_meb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0003 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[512];
+	unsigned char	modulus[512];
+	unsigned char	message[512];
+} __attribute__((packed));
+
+/* CRT, with a small modulus */
+struct type50_crb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0011 */
+	unsigned char	reserved[6];
+	unsigned char	p[64];
+	unsigned char	q[64];
+	unsigned char	dp[64];
+	unsigned char	dq[64];
+	unsigned char	u[64];
+	unsigned char	message[128];
+} __attribute__((packed));
+
+/* CRT, with a large modulus */
+struct type50_crb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0012 */
+	unsigned char	reserved[6];
+	unsigned char	p[128];
+	unsigned char	q[128];
+	unsigned char	dp[128];
+	unsigned char	dq[128];
+	unsigned char	u[128];
+	unsigned char	message[256];
+} __attribute__((packed));
+
+/* CRT, with a larger modulus */
+struct type50_crb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0013 */
+	unsigned char	reserved[6];
+	unsigned char	p[256];
+	unsigned char	q[256];
+	unsigned char	dp[256];
+	unsigned char	dq[256];
+	unsigned char	u[256];
+	unsigned char	message[512];
+} __attribute__((packed));
+
+/**
+ * The type 80 response family is associated with a CEX2A card.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+
+#define TYPE80_RSP_CODE 0x80
+
+struct type80_hdr {
+	unsigned char	reserved1;
+	unsigned char	type;		/* 0x80 */
+	unsigned short	len;
+	unsigned char	code;		/* 0x00 */
+	unsigned char	reserved2[3];
+	unsigned char	reserved3[8];
+} __attribute__((packed));
+
+int zcrypt_cex2a_init(void);
+void zcrypt_cex2a_exit(void);
+
+#endif /* _ZCRYPT_CEX2A_H_ */
diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c
new file mode 100644
index 0000000..bb39088
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex4.c
@@ -0,0 +1,188 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_msgtype6.h"
+#include "zcrypt_msgtype50.h"
+#include "zcrypt_error.h"
+#include "zcrypt_cex4.h"
+
+#define CEX4A_MIN_MOD_SIZE	  1	/*    8 bits	*/
+#define CEX4A_MAX_MOD_SIZE_2K	256	/* 2048 bits	*/
+#define CEX4A_MAX_MOD_SIZE_4K	512	/* 4096 bits	*/
+
+#define CEX4C_MIN_MOD_SIZE	 16	/*  256 bits	*/
+#define CEX4C_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define CEX4A_SPEED_RATING	900	 /* TODO new card, new speed rating */
+#define CEX4C_SPEED_RATING	6500	 /* TODO new card, new speed rating */
+#define CEX4P_SPEED_RATING	7000	 /* TODO new card, new speed rating */
+#define CEX5A_SPEED_RATING	450	 /* TODO new card, new speed rating */
+#define CEX5C_SPEED_RATING	3250	 /* TODO new card, new speed rating */
+#define CEX5P_SPEED_RATING	3500	 /* TODO new card, new speed rating */
+
+#define CEX4A_MAX_MESSAGE_SIZE	MSGTYPE50_CRB3_MAX_MSG_SIZE
+#define CEX4C_MAX_MESSAGE_SIZE	MSGTYPE06_MAX_MSG_SIZE
+
+/* Waiting time for requests to be processed.
+ * Currently there are some types of request which are not deterministic.
+ * But the maximum time limit managed by the stomper code is set to 60sec.
+ * Hence we have to wait at least that time period.
+ */
+#define CEX4_CLEANUP_TIME	(900*HZ)
+
+static struct ap_device_id zcrypt_cex4_ids[] = {
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX4)  },
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX5)  },
+	{ /* end of list */ },
+};
+
+MODULE_DEVICE_TABLE(ap, zcrypt_cex4_ids);
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("CEX4 Cryptographic Card device driver, " \
+		   "Copyright IBM Corp. 2012");
+MODULE_LICENSE("GPL");
+
+static int zcrypt_cex4_probe(struct ap_device *ap_dev);
+static void zcrypt_cex4_remove(struct ap_device *ap_dev);
+
+static struct ap_driver zcrypt_cex4_driver = {
+	.probe = zcrypt_cex4_probe,
+	.remove = zcrypt_cex4_remove,
+	.ids = zcrypt_cex4_ids,
+	.request_timeout = CEX4_CLEANUP_TIME,
+};
+
+/**
+ * Probe function for CEX4 cards. It always accepts the AP device
+ * since the bus_match already checked the hardware type.
+ * @ap_dev: pointer to the AP device.
+ */
+static int zcrypt_cex4_probe(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = NULL;
+	int rc = 0;
+
+	switch (ap_dev->device_type) {
+	case AP_DEVICE_TYPE_CEX4:
+	case AP_DEVICE_TYPE_CEX5:
+		if (ap_test_bit(&ap_dev->functions, AP_FUNC_ACCEL)) {
+			zdev = zcrypt_device_alloc(CEX4A_MAX_MESSAGE_SIZE);
+			if (!zdev)
+				return -ENOMEM;
+			if (ap_dev->device_type == AP_DEVICE_TYPE_CEX4) {
+				zdev->type_string = "CEX4A";
+				zdev->speed_rating = CEX4A_SPEED_RATING;
+			} else {
+				zdev->type_string = "CEX5A";
+				zdev->speed_rating = CEX5A_SPEED_RATING;
+			}
+			zdev->user_space_type = ZCRYPT_CEX3A;
+			zdev->min_mod_size = CEX4A_MIN_MOD_SIZE;
+			if (ap_test_bit(&ap_dev->functions, AP_FUNC_MEX4K) &&
+			    ap_test_bit(&ap_dev->functions, AP_FUNC_CRT4K)) {
+				zdev->max_mod_size =
+					CEX4A_MAX_MOD_SIZE_4K;
+				zdev->max_exp_bit_length =
+					CEX4A_MAX_MOD_SIZE_4K;
+			} else {
+				zdev->max_mod_size =
+					CEX4A_MAX_MOD_SIZE_2K;
+				zdev->max_exp_bit_length =
+					CEX4A_MAX_MOD_SIZE_2K;
+			}
+			zdev->short_crt = 1;
+			zdev->ops = zcrypt_msgtype_request(MSGTYPE50_NAME,
+							   MSGTYPE50_VARIANT_DEFAULT);
+		} else if (ap_test_bit(&ap_dev->functions, AP_FUNC_COPRO)) {
+			zdev = zcrypt_device_alloc(CEX4C_MAX_MESSAGE_SIZE);
+			if (!zdev)
+				return -ENOMEM;
+			if (ap_dev->device_type == AP_DEVICE_TYPE_CEX4) {
+				zdev->type_string = "CEX4C";
+				zdev->speed_rating = CEX4C_SPEED_RATING;
+			} else {
+				zdev->type_string = "CEX5C";
+				zdev->speed_rating = CEX5C_SPEED_RATING;
+			}
+			zdev->user_space_type = ZCRYPT_CEX3C;
+			zdev->min_mod_size = CEX4C_MIN_MOD_SIZE;
+			zdev->max_mod_size = CEX4C_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = CEX4C_MAX_MOD_SIZE;
+			zdev->short_crt = 0;
+			zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+							   MSGTYPE06_VARIANT_DEFAULT);
+		} else if (ap_test_bit(&ap_dev->functions, AP_FUNC_EP11)) {
+			zdev = zcrypt_device_alloc(CEX4C_MAX_MESSAGE_SIZE);
+			if (!zdev)
+				return -ENOMEM;
+			if (ap_dev->device_type == AP_DEVICE_TYPE_CEX4) {
+				zdev->type_string = "CEX4P";
+				zdev->speed_rating = CEX4P_SPEED_RATING;
+			} else {
+				zdev->type_string = "CEX5P";
+				zdev->speed_rating = CEX5P_SPEED_RATING;
+			}
+			zdev->user_space_type = ZCRYPT_CEX4;
+			zdev->min_mod_size = CEX4C_MIN_MOD_SIZE;
+			zdev->max_mod_size = CEX4C_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = CEX4C_MAX_MOD_SIZE;
+			zdev->short_crt = 0;
+			zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+							MSGTYPE06_VARIANT_EP11);
+		}
+		break;
+	}
+	if (!zdev)
+		return -ENODEV;
+	zdev->ap_dev = ap_dev;
+	zdev->online = 1;
+	ap_dev->reply = &zdev->reply;
+	ap_dev->private = zdev;
+	rc = zcrypt_device_register(zdev);
+	if (rc) {
+		zcrypt_msgtype_release(zdev->ops);
+		ap_dev->private = NULL;
+		zcrypt_device_free(zdev);
+	}
+	return rc;
+}
+
+/**
+ * This is called to remove the extended CEX4 driver information
+ * if an AP device is removed.
+ */
+static void zcrypt_cex4_remove(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops;
+
+	if (zdev) {
+		zops = zdev->ops;
+		zcrypt_device_unregister(zdev);
+		zcrypt_msgtype_release(zops);
+	}
+}
+
+int __init zcrypt_cex4_init(void)
+{
+	return ap_driver_register(&zcrypt_cex4_driver, THIS_MODULE, "cex4");
+}
+
+void __exit zcrypt_cex4_exit(void)
+{
+	ap_driver_unregister(&zcrypt_cex4_driver);
+}
+
+module_init(zcrypt_cex4_init);
+module_exit(zcrypt_cex4_exit);
diff --git a/drivers/s390/crypto/zcrypt_cex4.h b/drivers/s390/crypto/zcrypt_cex4.h
new file mode 100644
index 0000000..7195713
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex4.h
@@ -0,0 +1,12 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
+ */
+
+#ifndef _ZCRYPT_CEX4_H_
+#define _ZCRYPT_CEX4_H_
+
+int zcrypt_cex4_init(void);
+void zcrypt_cex4_exit(void);
+
+#endif /* _ZCRYPT_CEX4_H_ */
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
new file mode 100644
index 0000000..28d9349
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -0,0 +1,53 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler (hd@linux.vnet.ibm.com)
+ */
+#ifndef ZCRYPT_DEBUG_H
+#define ZCRYPT_DEBUG_H
+
+#include <asm/debug.h>
+#include "zcrypt_api.h"
+
+/* that gives us 15 characters in the text event views */
+#define ZCRYPT_DBF_LEN	16
+
+#define DBF_ERR		3	/* error conditions	*/
+#define DBF_WARN	4	/* warning conditions	*/
+#define DBF_INFO	6	/* informational	*/
+
+#define RC2WARN(rc) ((rc) ? DBF_WARN : DBF_INFO)
+
+#define ZCRYPT_DBF_COMMON(level, text...) \
+	do { \
+		if (debug_level_enabled(zcrypt_dbf_common, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(zcrypt_dbf_common, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+#define ZCRYPT_DBF_DEVICES(level, text...) \
+	do { \
+		if (debug_level_enabled(zcrypt_dbf_devices, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(zcrypt_dbf_devices, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+#define ZCRYPT_DBF_DEV(level, device, text...) \
+	do { \
+		if (debug_level_enabled(device->dbf_area, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(device->dbf_area, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+int zcrypt_debug_init(void);
+void zcrypt_debug_exit(void);
+
+#endif /* ZCRYPT_DEBUG_H */
diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h
new file mode 100644
index 0000000..7b23f43
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_error.h
@@ -0,0 +1,140 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2006
+ *  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.
+ */
+
+#ifndef _ZCRYPT_ERROR_H_
+#define _ZCRYPT_ERROR_H_
+
+#include <linux/atomic.h>
+#include "zcrypt_debug.h"
+#include "zcrypt_api.h"
+
+/**
+ * Reply Messages
+ *
+ * Error reply messages are of two types:
+ *    82:  Error (see below)
+ *    88:  Error (see below)
+ * Both type 82 and type 88 have the same structure in the header.
+ *
+ * Request reply messages are of three known types:
+ *    80:  Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS)
+ *    84:  Reply from a Type 4 Request (see PCICA-RELATED STRUCTS)
+ *    86:  Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS)
+ *
+ */
+struct error_hdr {
+	unsigned char reserved1;	/* 0x00			*/
+	unsigned char type;		/* 0x82 or 0x88		*/
+	unsigned char reserved2[2];	/* 0x0000		*/
+	unsigned char reply_code;	/* reply code		*/
+	unsigned char reserved3[3];	/* 0x000000		*/
+};
+
+#define TYPE82_RSP_CODE 0x82
+#define TYPE88_RSP_CODE 0x88
+
+#define REP82_ERROR_MACHINE_FAILURE  0x10
+#define REP82_ERROR_PREEMPT_FAILURE  0x12
+#define REP82_ERROR_CHECKPT_FAILURE  0x14
+#define REP82_ERROR_MESSAGE_TYPE     0x20
+#define REP82_ERROR_INVALID_COMM_CD  0x21	/* Type 84	*/
+#define REP82_ERROR_INVALID_MSG_LEN  0x23
+#define REP82_ERROR_RESERVD_FIELD    0x24	/* was 0x50	*/
+#define REP82_ERROR_FORMAT_FIELD     0x29
+#define REP82_ERROR_INVALID_COMMAND  0x30
+#define REP82_ERROR_MALFORMED_MSG    0x40
+#define REP82_ERROR_RESERVED_FIELDO  0x50	/* old value	*/
+#define REP82_ERROR_WORD_ALIGNMENT   0x60
+#define REP82_ERROR_MESSAGE_LENGTH   0x80
+#define REP82_ERROR_OPERAND_INVALID  0x82
+#define REP82_ERROR_OPERAND_SIZE     0x84
+#define REP82_ERROR_EVEN_MOD_IN_OPND 0x85
+#define REP82_ERROR_RESERVED_FIELD   0x88
+#define REP82_ERROR_TRANSPORT_FAIL   0x90
+#define REP82_ERROR_PACKET_TRUNCATED 0xA0
+#define REP82_ERROR_ZERO_BUFFER_LEN  0xB0
+
+#define REP88_ERROR_MODULE_FAILURE   0x10
+
+#define REP88_ERROR_MESSAGE_TYPE     0x20
+#define REP88_ERROR_MESSAGE_MALFORMD 0x22
+#define REP88_ERROR_MESSAGE_LENGTH   0x23
+#define REP88_ERROR_RESERVED_FIELD   0x24
+#define REP88_ERROR_KEY_TYPE	     0x34
+#define REP88_ERROR_INVALID_KEY      0x82	/* CEX2A	*/
+#define REP88_ERROR_OPERAND	     0x84	/* CEX2A	*/
+#define REP88_ERROR_OPERAND_EVEN_MOD 0x85	/* CEX2A	*/
+
+static inline int convert_error(struct zcrypt_device *zdev,
+				struct ap_message *reply)
+{
+	struct error_hdr *ehdr = reply->message;
+
+	switch (ehdr->reply_code) {
+	case REP82_ERROR_OPERAND_INVALID:
+	case REP82_ERROR_OPERAND_SIZE:
+	case REP82_ERROR_EVEN_MOD_IN_OPND:
+	case REP88_ERROR_MESSAGE_MALFORMD:
+	//   REP88_ERROR_INVALID_KEY		// '82' CEX2A
+	//   REP88_ERROR_OPERAND		// '84' CEX2A
+	//   REP88_ERROR_OPERAND_EVEN_MOD	// '85' CEX2A
+		/* Invalid input data. */
+		return -EINVAL;
+	case REP82_ERROR_MESSAGE_TYPE:
+	//   REP88_ERROR_MESSAGE_TYPE		// '20' CEX2A
+		/*
+		 * To sent a message of the wrong type is a bug in the
+		 * device driver. Send error msg, disable the device
+		 * and then repeat the request.
+		 */
+		atomic_set(&zcrypt_rescan_req, 1);
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
+		return -EAGAIN;
+	case REP82_ERROR_TRANSPORT_FAIL:
+	case REP82_ERROR_MACHINE_FAILURE:
+	//   REP88_ERROR_MODULE_FAILURE		// '10' CEX2A
+		/* If a card fails disable it and repeat the request. */
+		atomic_set(&zcrypt_rescan_req, 1);
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
+		return -EAGAIN;
+	default:
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+#endif /* _ZCRYPT_ERROR_H_ */
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c
new file mode 100644
index 0000000..74edf29
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype50.c
@@ -0,0 +1,532 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#define KMSG_COMPONENT "zcrypt"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_msgtype50.h"
+
+#define CEX3A_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define CEX2A_MAX_RESPONSE_SIZE 0x110	/* max outputdatalength + type80_hdr */
+
+#define CEX3A_MAX_RESPONSE_SIZE	0x210	/* 512 bit modulus
+					 * (max outputdatalength) +
+					 * type80_hdr*/
+
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Cryptographic Accelerator (message type 50), " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *,
+				 struct ap_message *);
+
+/**
+ * The type 50 message family is associated with a CEX2A card.
+ *
+ * The four members of the family are described below.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type50_hdr {
+	unsigned char	reserved1;
+	unsigned char	msg_type_code;	/* 0x50 */
+	unsigned short	msg_len;
+	unsigned char	reserved2;
+	unsigned char	ignored;
+	unsigned short	reserved3;
+} __packed;
+
+#define TYPE50_TYPE_CODE	0x50
+
+#define TYPE50_MEB1_FMT		0x0001
+#define TYPE50_MEB2_FMT		0x0002
+#define TYPE50_MEB3_FMT		0x0003
+#define TYPE50_CRB1_FMT		0x0011
+#define TYPE50_CRB2_FMT		0x0012
+#define TYPE50_CRB3_FMT		0x0013
+
+/* Mod-Exp, with a small modulus */
+struct type50_meb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0001 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[128];
+	unsigned char	modulus[128];
+	unsigned char	message[128];
+} __packed;
+
+/* Mod-Exp, with a large modulus */
+struct type50_meb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0002 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[256];
+	unsigned char	modulus[256];
+	unsigned char	message[256];
+} __packed;
+
+/* Mod-Exp, with a larger modulus */
+struct type50_meb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0003 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[512];
+	unsigned char	modulus[512];
+	unsigned char	message[512];
+} __packed;
+
+/* CRT, with a small modulus */
+struct type50_crb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0011 */
+	unsigned char	reserved[6];
+	unsigned char	p[64];
+	unsigned char	q[64];
+	unsigned char	dp[64];
+	unsigned char	dq[64];
+	unsigned char	u[64];
+	unsigned char	message[128];
+} __packed;
+
+/* CRT, with a large modulus */
+struct type50_crb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0012 */
+	unsigned char	reserved[6];
+	unsigned char	p[128];
+	unsigned char	q[128];
+	unsigned char	dp[128];
+	unsigned char	dq[128];
+	unsigned char	u[128];
+	unsigned char	message[256];
+} __packed;
+
+/* CRT, with a larger modulus */
+struct type50_crb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0013 */
+	unsigned char	reserved[6];
+	unsigned char	p[256];
+	unsigned char	q[256];
+	unsigned char	dp[256];
+	unsigned char	dq[256];
+	unsigned char	u[256];
+	unsigned char	message[512];
+} __packed;
+
+/**
+ * The type 80 response family is associated with a CEX2A card.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+
+#define TYPE80_RSP_CODE 0x80
+
+struct type80_hdr {
+	unsigned char	reserved1;
+	unsigned char	type;		/* 0x80 */
+	unsigned short	len;
+	unsigned char	code;		/* 0x00 */
+	unsigned char	reserved2[3];
+	unsigned char	reserved3[8];
+} __packed;
+
+/**
+ * Convert a ICAMEX message to a type50 MEX message.
+ *
+ * @zdev: crypto device pointer
+ * @zreq: crypto request pointer
+ * @mex: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo *mex)
+{
+	unsigned char *mod, *exp, *inp;
+	int mod_len;
+
+	mod_len = mex->inputdatalength;
+
+	if (mod_len <= 128) {
+		struct type50_meb1_msg *meb1 = ap_msg->message;
+		memset(meb1, 0, sizeof(*meb1));
+		ap_msg->length = sizeof(*meb1);
+		meb1->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb1->header.msg_len = sizeof(*meb1);
+		meb1->keyblock_type = TYPE50_MEB1_FMT;
+		mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
+		exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
+		inp = meb1->message + sizeof(meb1->message) - mod_len;
+	} else if (mod_len <= 256) {
+		struct type50_meb2_msg *meb2 = ap_msg->message;
+		memset(meb2, 0, sizeof(*meb2));
+		ap_msg->length = sizeof(*meb2);
+		meb2->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb2->header.msg_len = sizeof(*meb2);
+		meb2->keyblock_type = TYPE50_MEB2_FMT;
+		mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
+		exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
+		inp = meb2->message + sizeof(meb2->message) - mod_len;
+	} else {
+		/* mod_len > 256 = 4096 bit RSA Key */
+		struct type50_meb3_msg *meb3 = ap_msg->message;
+		memset(meb3, 0, sizeof(*meb3));
+		ap_msg->length = sizeof(*meb3);
+		meb3->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb3->header.msg_len = sizeof(*meb3);
+		meb3->keyblock_type = TYPE50_MEB3_FMT;
+		mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
+		exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
+		inp = meb3->message + sizeof(meb3->message) - mod_len;
+	}
+
+	if (copy_from_user(mod, mex->n_modulus, mod_len) ||
+	    copy_from_user(exp, mex->b_key, mod_len) ||
+	    copy_from_user(inp, mex->inputdata, mod_len))
+		return -EFAULT;
+	return 0;
+}
+
+/**
+ * Convert a ICACRT message to a type50 CRT message.
+ *
+ * @zdev: crypto device pointer
+ * @zreq: crypto request pointer
+ * @crt: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo_crt *crt)
+{
+	int mod_len, short_len;
+	unsigned char *p, *q, *dp, *dq, *u, *inp;
+
+	mod_len = crt->inputdatalength;
+	short_len = (mod_len + 1) / 2;
+
+	/*
+	 * CEX2A and CEX3A w/o FW update can handle requests up to
+	 * 256 byte modulus (2k keys).
+	 * CEX3A with FW update and CEX4A cards are able to handle
+	 * 512 byte modulus (4k keys).
+	 */
+	if (mod_len <= 128) {		/* up to 1024 bit key size */
+		struct type50_crb1_msg *crb1 = ap_msg->message;
+		memset(crb1, 0, sizeof(*crb1));
+		ap_msg->length = sizeof(*crb1);
+		crb1->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb1->header.msg_len = sizeof(*crb1);
+		crb1->keyblock_type = TYPE50_CRB1_FMT;
+		p = crb1->p + sizeof(crb1->p) - short_len;
+		q = crb1->q + sizeof(crb1->q) - short_len;
+		dp = crb1->dp + sizeof(crb1->dp) - short_len;
+		dq = crb1->dq + sizeof(crb1->dq) - short_len;
+		u = crb1->u + sizeof(crb1->u) - short_len;
+		inp = crb1->message + sizeof(crb1->message) - mod_len;
+	} else if (mod_len <= 256) {	/* up to 2048 bit key size */
+		struct type50_crb2_msg *crb2 = ap_msg->message;
+		memset(crb2, 0, sizeof(*crb2));
+		ap_msg->length = sizeof(*crb2);
+		crb2->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb2->header.msg_len = sizeof(*crb2);
+		crb2->keyblock_type = TYPE50_CRB2_FMT;
+		p = crb2->p + sizeof(crb2->p) - short_len;
+		q = crb2->q + sizeof(crb2->q) - short_len;
+		dp = crb2->dp + sizeof(crb2->dp) - short_len;
+		dq = crb2->dq + sizeof(crb2->dq) - short_len;
+		u = crb2->u + sizeof(crb2->u) - short_len;
+		inp = crb2->message + sizeof(crb2->message) - mod_len;
+	} else if ((mod_len <= 512) &&	/* up to 4096 bit key size */
+		   (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)) { /* >= CEX3A */
+		struct type50_crb3_msg *crb3 = ap_msg->message;
+		memset(crb3, 0, sizeof(*crb3));
+		ap_msg->length = sizeof(*crb3);
+		crb3->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb3->header.msg_len = sizeof(*crb3);
+		crb3->keyblock_type = TYPE50_CRB3_FMT;
+		p = crb3->p + sizeof(crb3->p) - short_len;
+		q = crb3->q + sizeof(crb3->q) - short_len;
+		dp = crb3->dp + sizeof(crb3->dp) - short_len;
+		dq = crb3->dq + sizeof(crb3->dq) - short_len;
+		u = crb3->u + sizeof(crb3->u) - short_len;
+		inp = crb3->message + sizeof(crb3->message) - mod_len;
+	} else
+		return -EINVAL;
+
+	/*
+	 * correct the offset of p, bp and mult_inv according zcrypt.h
+	 * block size right aligned (skip the first byte)
+	 */
+	if (copy_from_user(p, crt->np_prime + MSGTYPE_ADJUSTMENT, short_len) ||
+	    copy_from_user(q, crt->nq_prime, short_len) ||
+	    copy_from_user(dp, crt->bp_key + MSGTYPE_ADJUSTMENT, short_len) ||
+	    copy_from_user(dq, crt->bq_key, short_len) ||
+	    copy_from_user(u, crt->u_mult_inv + MSGTYPE_ADJUSTMENT, short_len) ||
+	    copy_from_user(inp, crt->inputdata, mod_len))
+		return -EFAULT;
+
+	return 0;
+}
+
+/**
+ * Copy results from a type 80 reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @data: pointer to user output data
+ * @length: size of user output data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int convert_type80(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char __user *outputdata,
+			  unsigned int outputdatalength)
+{
+	struct type80_hdr *t80h = reply->message;
+	unsigned char *data;
+
+	if (t80h->len < sizeof(*t80h) + outputdatalength) {
+		/* The result is too short, the CEX2A card may not do that.. */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			       zdev->ap_dev->qid, zdev->online, t80h->code);
+
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
+	else
+		BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
+	data = reply->message + t80h->len - outputdatalength;
+	if (copy_to_user(outputdata, data, outputdatalength))
+		return -EFAULT;
+	return 0;
+}
+
+static int convert_response(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    char __user *outputdata,
+			    unsigned int outputdatalength)
+{
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return convert_error(zdev, reply);
+	case TYPE80_RSP_CODE:
+		return convert_type80(zdev, reply,
+				      outputdata, outputdatalength);
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
+			       zdev->ap_dev->qid, zdev->online);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+/**
+ * This function is called from the AP bus code after a crypto request
+ * "msg" has finished with the reply message "reply".
+ * It is called from tasklet context.
+ * @ap_dev: pointer to the AP device
+ * @msg: pointer to the AP message
+ * @reply: pointer to the AP reply message
+ */
+static void zcrypt_cex2a_receive(struct ap_device *ap_dev,
+				 struct ap_message *msg,
+				 struct ap_message *reply)
+{
+	static struct error_hdr error_reply = {
+		.type = TYPE82_RSP_CODE,
+		.reply_code = REP82_ERROR_MACHINE_FAILURE,
+	};
+	struct type80_hdr *t80h;
+	int length;
+
+	/* Copy the reply message to the request message buffer. */
+	if (!reply)
+		goto out;	/* ap_msg->rc indicates the error */
+	t80h = reply->message;
+	if (t80h->type == TYPE80_RSP_CODE) {
+		if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
+			length = min_t(int,
+				       CEX2A_MAX_RESPONSE_SIZE, t80h->len);
+		else
+			length = min_t(int,
+				       CEX3A_MAX_RESPONSE_SIZE, t80h->len);
+		memcpy(msg->message, reply->message, length);
+	} else
+		memcpy(msg->message, reply->message, sizeof(error_reply));
+out:
+	complete((struct completion *) msg->private);
+}
+
+static atomic_t zcrypt_step = ATOMIC_INIT(0);
+
+/**
+ * The request distributor calls this function if it picked the CEX2A
+ * device to handle a modexpo request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  CEX2A device to the request distributor
+ * @mex: pointer to the modexpo request buffer
+ */
+static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev,
+				 struct ica_rsa_modexpo *mex)
+{
+	struct ap_message ap_msg;
+	struct completion work;
+	int rc;
+
+	ap_init_message(&ap_msg);
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	else
+		ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_cex2a_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &work;
+	rc = ICAMEX_msg_to_type50MEX_msg(zdev, &ap_msg, mex);
+	if (rc)
+		goto out_free;
+	init_completion(&work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response(zdev, &ap_msg, mex->outputdata,
+					      mex->outputdatalength);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the CEX2A
+ * device to handle a modexpo_crt request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  CEX2A device to the request distributor
+ * @crt: pointer to the modexpoc_crt request buffer
+ */
+static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev,
+				     struct ica_rsa_modexpo_crt *crt)
+{
+	struct ap_message ap_msg;
+	struct completion work;
+	int rc;
+
+	ap_init_message(&ap_msg);
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	else
+		ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_cex2a_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &work;
+	rc = ICACRT_msg_to_type50CRT_msg(zdev, &ap_msg, crt);
+	if (rc)
+		goto out_free;
+	init_completion(&work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response(zdev, &ap_msg, crt->outputdata,
+					      crt->outputdatalength);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The crypto operations for message type 50.
+ */
+static struct zcrypt_ops zcrypt_msgtype50_ops = {
+	.rsa_modexpo = zcrypt_cex2a_modexpo,
+	.rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt,
+	.owner = THIS_MODULE,
+	.name = MSGTYPE50_NAME,
+	.variant = MSGTYPE50_VARIANT_DEFAULT,
+};
+
+int __init zcrypt_msgtype50_init(void)
+{
+	zcrypt_msgtype_register(&zcrypt_msgtype50_ops);
+	return 0;
+}
+
+void __exit zcrypt_msgtype50_exit(void)
+{
+	zcrypt_msgtype_unregister(&zcrypt_msgtype50_ops);
+}
+
+module_init(zcrypt_msgtype50_init);
+module_exit(zcrypt_msgtype50_exit);
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.h b/drivers/s390/crypto/zcrypt_msgtype50.h
new file mode 100644
index 0000000..0a66e4a
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype50.h
@@ -0,0 +1,41 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#ifndef _ZCRYPT_MSGTYPE50_H_
+#define _ZCRYPT_MSGTYPE50_H_
+
+#define MSGTYPE50_NAME			"zcrypt_msgtype50"
+#define MSGTYPE50_VARIANT_DEFAULT	0
+
+#define MSGTYPE50_CRB2_MAX_MSG_SIZE	0x390 /*sizeof(struct type50_crb2_msg)*/
+#define MSGTYPE50_CRB3_MAX_MSG_SIZE	0x710 /*sizeof(struct type50_crb3_msg)*/
+
+#define MSGTYPE_ADJUSTMENT		0x08  /*type04 extension (not needed in type50)*/
+
+int zcrypt_msgtype50_init(void);
+void zcrypt_msgtype50_exit(void);
+
+#endif /* _ZCRYPT_MSGTYPE50_H_ */
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
new file mode 100644
index 0000000..9a2dd47
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -0,0 +1,1164 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#define KMSG_COMPONENT "zcrypt"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_msgtype6.h"
+#include "zcrypt_cca_key.h"
+
+#define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
+#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
+
+#define CEIL4(x) ((((x)+3)/4)*4)
+
+struct response_type {
+	struct completion work;
+	int type;
+};
+#define PCIXCC_RESPONSE_TYPE_ICA  0
+#define PCIXCC_RESPONSE_TYPE_XCRB 1
+#define PCIXCC_RESPONSE_TYPE_EP11 2
+
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static void zcrypt_msgtype6_receive(struct ap_device *, struct ap_message *,
+				 struct ap_message *);
+
+/**
+ * CPRB
+ *	  Note that all shorts, ints and longs are little-endian.
+ *	  All pointer fields are 32-bits long, and mean nothing
+ *
+ *	  A request CPRB is followed by a request_parameter_block.
+ *
+ *	  The request (or reply) parameter block is organized thus:
+ *	    function code
+ *	    VUD block
+ *	    key block
+ */
+struct CPRB {
+	unsigned short cprb_len;	/* CPRB length			 */
+	unsigned char cprb_ver_id;	/* CPRB version id.		 */
+	unsigned char pad_000;		/* Alignment pad byte.		 */
+	unsigned char srpi_rtcode[4];	/* SRPI return code LELONG	 */
+	unsigned char srpi_verb;	/* SRPI verb type		 */
+	unsigned char flags;		/* flags			 */
+	unsigned char func_id[2];	/* function id			 */
+	unsigned char checkpoint_flag;	/*				 */
+	unsigned char resv2;		/* reserved			 */
+	unsigned short req_parml;	/* request parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char req_parmp[4];	/* request parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char req_datal[4];	/* request data buffer		 */
+					/* length	  ULELONG	 */
+	unsigned char req_datap[4];	/* request data buffer		 */
+					/* pointer			 */
+	unsigned short rpl_parml;	/* reply  parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char pad_001[2];	/* Alignment pad bytes. ULESHORT */
+	unsigned char rpl_parmp[4];	/* reply parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char rpl_datal[4];	/* reply data buffer len ULELONG */
+	unsigned char rpl_datap[4];	/* reply data buffer		 */
+					/* pointer			 */
+	unsigned short ccp_rscode;	/* server reason code	ULESHORT */
+	unsigned short ccp_rtcode;	/* server return code	ULESHORT */
+	unsigned char repd_parml[2];	/* replied parameter len ULESHORT*/
+	unsigned char mac_data_len[2];	/* Mac Data Length	ULESHORT */
+	unsigned char repd_datal[4];	/* replied data length	ULELONG	 */
+	unsigned char req_pc[2];	/* PC identifier		 */
+	unsigned char res_origin[8];	/* resource origin		 */
+	unsigned char mac_value[8];	/* Mac Value			 */
+	unsigned char logon_id[8];	/* Logon Identifier		 */
+	unsigned char usage_domain[2];	/* cdx				 */
+	unsigned char resv3[18];	/* reserved for requestor	 */
+	unsigned short svr_namel;	/* server name length  ULESHORT	 */
+	unsigned char svr_name[8];	/* server name			 */
+} __packed;
+
+struct function_and_rules_block {
+	unsigned char function_code[2];
+	unsigned short ulen;
+	unsigned char only_rule[8];
+} __packed;
+
+/**
+ * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
+ * card in a type6 message. The 3 fields that must be filled in at execution
+ * time are  req_parml, rpl_parml and usage_domain.
+ * Everything about this interface is ascii/big-endian, since the
+ * device does *not* have 'Intel inside'.
+ *
+ * The CPRBX is followed immediately by the parm block.
+ * The parm block contains:
+ * - function code ('PD' 0x5044 or 'PK' 0x504B)
+ * - rule block (one of:)
+ *   + 0x000A 'PKCS-1.2' (MCL2 'PD')
+ *   + 0x000A 'ZERO-PAD' (MCL2 'PK')
+ *   + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD')
+ *   + 0x000A 'MRP     ' (MCL3 'PK' or CEX2C 'PK')
+ * - VUD block
+ */
+static struct CPRBX static_cprbx = {
+	.cprb_len	=  0x00DC,
+	.cprb_ver_id	=  0x02,
+	.func_id	= {0x54, 0x32},
+};
+
+/**
+ * Convert a ICAMEX message to a type6 MEX message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @mex: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo *mex)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+		.agent_id	= {'C', 'A',},
+		.function_code	= {'P', 'K'},
+	};
+	static struct function_and_rules_block static_pke_fnr = {
+		.function_code	= {'P', 'K'},
+		.ulen		= 10,
+		.only_rule	= {'M', 'R', 'P', ' ', ' ', ' ', ' ', ' '}
+	};
+	static struct function_and_rules_block static_pke_fnr_MCL2 = {
+		.function_code	= {'P', 'K'},
+		.ulen		= 10,
+		.only_rule	= {'Z', 'E', 'R', 'O', '-', 'P', 'A', 'D'}
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		struct function_and_rules_block fr;
+		unsigned short length;
+		char text[0];
+	} __packed * msg = ap_msg->message;
+	int size;
+
+	/* VUD.ciphertext */
+	msg->length = mex->inputdatalength + 2;
+	if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength))
+		return -EFAULT;
+
+	/* Set up key which is located after the variable length text. */
+	size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1);
+	if (size < 0)
+		return size;
+	size += sizeof(*msg) + mex->inputdatalength;
+
+	/* message header, cprbx and f&r */
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+
+	msg->cprbx = static_cprbx;
+	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
+	msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1;
+
+	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
+		static_pke_fnr_MCL2 : static_pke_fnr;
+
+	msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx);
+
+	ap_msg->length = size;
+	return 0;
+}
+
+/**
+ * Convert a ICACRT message to a type6 CRT message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @crt: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo_crt *crt)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+		.agent_id	= {'C', 'A',},
+		.function_code	= {'P', 'D'},
+	};
+	static struct function_and_rules_block static_pkd_fnr = {
+		.function_code	= {'P', 'D'},
+		.ulen		= 10,
+		.only_rule	= {'Z', 'E', 'R', 'O', '-', 'P', 'A', 'D'}
+	};
+
+	static struct function_and_rules_block static_pkd_fnr_MCL2 = {
+		.function_code	= {'P', 'D'},
+		.ulen		= 10,
+		.only_rule	= {'P', 'K', 'C', 'S', '-', '1', '.', '2'}
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		struct function_and_rules_block fr;
+		unsigned short length;
+		char text[0];
+	} __packed * msg = ap_msg->message;
+	int size;
+
+	/* VUD.ciphertext */
+	msg->length = crt->inputdatalength + 2;
+	if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength))
+		return -EFAULT;
+
+	/* Set up key which is located after the variable length text. */
+	size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1);
+	if (size < 0)
+		return size;
+	size += sizeof(*msg) + crt->inputdatalength;	/* total size of msg */
+
+	/* message header, cprbx and f&r */
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.ToCardLen1 = size -  sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+
+	msg->cprbx = static_cprbx;
+	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
+	msg->cprbx.req_parml = msg->cprbx.rpl_msgbl =
+		size - sizeof(msg->hdr) - sizeof(msg->cprbx);
+
+	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
+		static_pkd_fnr_MCL2 : static_pkd_fnr;
+
+	ap_msg->length = size;
+	return 0;
+}
+
+/**
+ * Convert a XCRB message to a type6 CPRB message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @xcRB: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT, -EINVAL.
+ */
+struct type86_fmt2_msg {
+	struct type86_hdr hdr;
+	struct type86_fmt2_ext fmt2;
+} __packed;
+
+static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_xcRB *xcRB)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+	} __packed * msg = ap_msg->message;
+
+	int rcblen = CEIL4(xcRB->request_control_blk_length);
+	int replylen, req_sumlen, resp_sumlen;
+	char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen;
+	char *function_code;
+
+	if (CEIL4(xcRB->request_control_blk_length) <
+			xcRB->request_control_blk_length)
+		return -EINVAL; /* overflow after alignment*/
+
+	/* length checks */
+	ap_msg->length = sizeof(struct type6_hdr) +
+		CEIL4(xcRB->request_control_blk_length) +
+		xcRB->request_data_length;
+	if (ap_msg->length > MSGTYPE06_MAX_MSG_SIZE)
+		return -EINVAL;
+
+	/* Overflow check
+	   sum must be greater (or equal) than the largest operand */
+	req_sumlen = CEIL4(xcRB->request_control_blk_length) +
+			xcRB->request_data_length;
+	if ((CEIL4(xcRB->request_control_blk_length) <=
+						xcRB->request_data_length) ?
+		(req_sumlen < xcRB->request_data_length) :
+		(req_sumlen < CEIL4(xcRB->request_control_blk_length))) {
+		return -EINVAL;
+	}
+
+	if (CEIL4(xcRB->reply_control_blk_length) <
+			xcRB->reply_control_blk_length)
+		return -EINVAL; /* overflow after alignment*/
+
+	replylen = sizeof(struct type86_fmt2_msg) +
+		CEIL4(xcRB->reply_control_blk_length) +
+		xcRB->reply_data_length;
+	if (replylen > MSGTYPE06_MAX_MSG_SIZE)
+		return -EINVAL;
+
+	/* Overflow check
+	   sum must be greater (or equal) than the largest operand */
+	resp_sumlen = CEIL4(xcRB->reply_control_blk_length) +
+			xcRB->reply_data_length;
+	if ((CEIL4(xcRB->reply_control_blk_length) <= xcRB->reply_data_length) ?
+		(resp_sumlen < xcRB->reply_data_length) :
+		(resp_sumlen < CEIL4(xcRB->reply_control_blk_length))) {
+		return -EINVAL;
+	}
+
+	/* prepare type6 header */
+	msg->hdr = static_type6_hdrX;
+	memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID));
+	msg->hdr.ToCardLen1 = xcRB->request_control_blk_length;
+	if (xcRB->request_data_length) {
+		msg->hdr.offset2 = msg->hdr.offset1 + rcblen;
+		msg->hdr.ToCardLen2 = xcRB->request_data_length;
+	}
+	msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length;
+	msg->hdr.FromCardLen2 = xcRB->reply_data_length;
+
+	/* prepare CPRB */
+	if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr,
+		    xcRB->request_control_blk_length))
+		return -EFAULT;
+	if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
+	    xcRB->request_control_blk_length)
+		return -EINVAL;
+	function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
+	memcpy(msg->hdr.function_code, function_code,
+	       sizeof(msg->hdr.function_code));
+
+	if (memcmp(function_code, "US", 2) == 0)
+		ap_msg->special = 1;
+	else
+		ap_msg->special = 0;
+
+	/* copy data block */
+	if (xcRB->request_data_length &&
+	    copy_from_user(req_data, xcRB->request_data_address,
+		xcRB->request_data_length))
+		return -EFAULT;
+	return 0;
+}
+
+static int xcrb_msg_to_type6_ep11cprb_msgx(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ep11_urb *xcRB)
+{
+	unsigned int lfmt;
+
+	static struct type6_hdr static_type6_ep11_hdr = {
+		.type		=  0x06,
+		.rqid		= {0x00, 0x01},
+		.function_code	= {0x00, 0x00},
+		.agent_id[0]	=  0x58,	/* {'X'} */
+		.agent_id[1]	=  0x43,	/* {'C'} */
+		.offset1	=  0x00000058,
+	};
+
+	struct {
+		struct type6_hdr hdr;
+		struct ep11_cprb cprbx;
+		unsigned char	pld_tag;	/* fixed value 0x30 */
+		unsigned char	pld_lenfmt;	/* payload length format */
+	} __packed * msg = ap_msg->message;
+
+	struct pld_hdr {
+		unsigned char	func_tag;	/* fixed value 0x4 */
+		unsigned char	func_len;	/* fixed value 0x4 */
+		unsigned int	func_val;	/* function ID	   */
+		unsigned char	dom_tag;	/* fixed value 0x4 */
+		unsigned char	dom_len;	/* fixed value 0x4 */
+		unsigned int	dom_val;	/* domain id	   */
+	} __packed * payload_hdr;
+
+	if (CEIL4(xcRB->req_len) < xcRB->req_len)
+		return -EINVAL; /* overflow after alignment*/
+
+	/* length checks */
+	ap_msg->length = sizeof(struct type6_hdr) + xcRB->req_len;
+	if (CEIL4(xcRB->req_len) > MSGTYPE06_MAX_MSG_SIZE -
+				   (sizeof(struct type6_hdr)))
+		return -EINVAL;
+
+	if (CEIL4(xcRB->resp_len) < xcRB->resp_len)
+		return -EINVAL; /* overflow after alignment*/
+
+	if (CEIL4(xcRB->resp_len) > MSGTYPE06_MAX_MSG_SIZE -
+				    (sizeof(struct type86_fmt2_msg)))
+		return -EINVAL;
+
+	/* prepare type6 header */
+	msg->hdr = static_type6_ep11_hdr;
+	msg->hdr.ToCardLen1   = xcRB->req_len;
+	msg->hdr.FromCardLen1 = xcRB->resp_len;
+
+	/* Import CPRB data from the ioctl input parameter */
+	if (copy_from_user(&(msg->cprbx.cprb_len),
+			   (char __force __user *)xcRB->req, xcRB->req_len)) {
+		return -EFAULT;
+	}
+
+	/*
+	 The target domain field within the cprb body/payload block will be
+	 replaced by the usage domain for non-management commands only.
+	 Therefore we check the first bit of the 'flags' parameter for
+	 management command indication.
+	   0 - non management command
+	   1 - management command
+	*/
+	if (!((msg->cprbx.flags & 0x80) == 0x80)) {
+		msg->cprbx.target_id = (unsigned int)
+					AP_QID_QUEUE(zdev->ap_dev->qid);
+
+		if ((msg->pld_lenfmt & 0x80) == 0x80) { /*ext.len.fmt 2 or 3*/
+			switch (msg->pld_lenfmt & 0x03) {
+			case 1:
+				lfmt = 2;
+				break;
+			case 2:
+				lfmt = 3;
+				break;
+			default:
+				return -EINVAL;
+			}
+		} else {
+			lfmt = 1; /* length format #1 */
+		  }
+		payload_hdr = (struct pld_hdr *)((&(msg->pld_lenfmt))+lfmt);
+		payload_hdr->dom_val = (unsigned int)
+					AP_QID_QUEUE(zdev->ap_dev->qid);
+	}
+	return 0;
+}
+
+/**
+ * Copy results from a type 86 ICA reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @data: pointer to user output data
+ * @length: size of user output data
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+struct type86x_reply {
+	struct type86_hdr hdr;
+	struct type86_fmt2_ext fmt2;
+	struct CPRBX cprbx;
+	unsigned char pad[4];	/* 4 byte function code/rules block ? */
+	unsigned short length;
+	char text[0];
+} __packed;
+
+struct type86_ep11_reply {
+	struct type86_hdr hdr;
+	struct type86_fmt2_ext fmt2;
+	struct ep11_cprb cprbx;
+} __packed;
+
+static int convert_type86_ica(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char __user *outputdata,
+			  unsigned int outputdatalength)
+{
+	static unsigned char static_pad[] = {
+		0x00, 0x02,
+		0x1B, 0x7B, 0x5D, 0xB5, 0x75, 0x01, 0x3D, 0xFD,
+		0x8D, 0xD1, 0xC7, 0x03, 0x2D, 0x09, 0x23, 0x57,
+		0x89, 0x49, 0xB9, 0x3F, 0xBB, 0x99, 0x41, 0x5B,
+		0x75, 0x21, 0x7B, 0x9D, 0x3B, 0x6B, 0x51, 0x39,
+		0xBB, 0x0D, 0x35, 0xB9, 0x89, 0x0F, 0x93, 0xA5,
+		0x0B, 0x47, 0xF1, 0xD3, 0xBB, 0xCB, 0xF1, 0x9D,
+		0x23, 0x73, 0x71, 0xFF, 0xF3, 0xF5, 0x45, 0xFB,
+		0x61, 0x29, 0x23, 0xFD, 0xF1, 0x29, 0x3F, 0x7F,
+		0x17, 0xB7, 0x1B, 0xA9, 0x19, 0xBD, 0x57, 0xA9,
+		0xD7, 0x95, 0xA3, 0xCB, 0xED, 0x1D, 0xDB, 0x45,
+		0x7D, 0x11, 0xD1, 0x51, 0x1B, 0xED, 0x71, 0xE9,
+		0xB1, 0xD1, 0xAB, 0xAB, 0x21, 0x2B, 0x1B, 0x9F,
+		0x3B, 0x9F, 0xF7, 0xF7, 0xBD, 0x63, 0xEB, 0xAD,
+		0xDF, 0xB3, 0x6F, 0x5B, 0xDB, 0x8D, 0xA9, 0x5D,
+		0xE3, 0x7D, 0x77, 0x49, 0x47, 0xF5, 0xA7, 0xFD,
+		0xAB, 0x2F, 0x27, 0x35, 0x77, 0xD3, 0x49, 0xC9,
+		0x09, 0xEB, 0xB1, 0xF9, 0xBF, 0x4B, 0xCB, 0x2B,
+		0xEB, 0xEB, 0x05, 0xFF, 0x7D, 0xC7, 0x91, 0x8B,
+		0x09, 0x83, 0xB9, 0xB9, 0x69, 0x33, 0x39, 0x6B,
+		0x79, 0x75, 0x19, 0xBF, 0xBB, 0x07, 0x1D, 0xBD,
+		0x29, 0xBF, 0x39, 0x95, 0x93, 0x1D, 0x35, 0xC7,
+		0xC9, 0x4D, 0xE5, 0x97, 0x0B, 0x43, 0x9B, 0xF1,
+		0x16, 0x93, 0x03, 0x1F, 0xA5, 0xFB, 0xDB, 0xF3,
+		0x27, 0x4F, 0x27, 0x61, 0x05, 0x1F, 0xB9, 0x23,
+		0x2F, 0xC3, 0x81, 0xA9, 0x23, 0x71, 0x55, 0x55,
+		0xEB, 0xED, 0x41, 0xE5, 0xF3, 0x11, 0xF1, 0x43,
+		0x69, 0x03, 0xBD, 0x0B, 0x37, 0x0F, 0x51, 0x8F,
+		0x0B, 0xB5, 0x89, 0x5B, 0x67, 0xA9, 0xD9, 0x4F,
+		0x01, 0xF9, 0x21, 0x77, 0x37, 0x73, 0x79, 0xC5,
+		0x7F, 0x51, 0xC1, 0xCF, 0x97, 0xA1, 0x75, 0xAD,
+		0x35, 0x9D, 0xD3, 0xD3, 0xA7, 0x9D, 0x5D, 0x41,
+		0x6F, 0x65, 0x1B, 0xCF, 0xA9, 0x87, 0x91, 0x09
+	};
+	struct type86x_reply *msg = reply->message;
+	unsigned short service_rc, service_rs;
+	unsigned int reply_len, pad_len;
+	char *data;
+
+	service_rc = msg->cprbx.ccp_rtcode;
+	if (unlikely(service_rc != 0)) {
+		service_rs = msg->cprbx.ccp_rscode;
+		if (service_rc == 8 && service_rs == 66)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 65)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 770)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 783) {
+			zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
+			return -EAGAIN;
+		}
+		if (service_rc == 12 && service_rs == 769)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 72)
+			return -EINVAL;
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			       zdev->ap_dev->qid, zdev->online,
+			       msg->hdr.reply_code);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+	data = msg->text;
+	reply_len = msg->length - 2;
+	if (reply_len > outputdatalength)
+		return -EINVAL;
+	/*
+	 * For all encipher requests, the length of the ciphertext (reply_len)
+	 * will always equal the modulus length. For MEX decipher requests
+	 * the output needs to get padded. Minimum pad size is 10.
+	 *
+	 * Currently, the cases where padding will be added is for:
+	 * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support
+	 *   ZERO-PAD and CRT is only supported for PKD requests)
+	 * - PCICC, always
+	 */
+	pad_len = outputdatalength - reply_len;
+	if (pad_len > 0) {
+		if (pad_len < 10)
+			return -EINVAL;
+		/* 'restore' padding left in the PCICC/PCIXCC card. */
+		if (copy_to_user(outputdata, static_pad, pad_len - 1))
+			return -EFAULT;
+		if (put_user(0, outputdata + pad_len - 1))
+			return -EFAULT;
+	}
+	/* Copy the crypto response to user space. */
+	if (copy_to_user(outputdata + pad_len, data, reply_len))
+		return -EFAULT;
+	return 0;
+}
+
+/**
+ * Copy results from a type 86 XCRB reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @xcRB: pointer to XCRB
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+static int convert_type86_xcrb(struct zcrypt_device *zdev,
+			       struct ap_message *reply,
+			       struct ica_xcRB *xcRB)
+{
+	struct type86_fmt2_msg *msg = reply->message;
+	char *data = reply->message;
+
+	/* Copy CPRB to user */
+	if (copy_to_user(xcRB->reply_control_blk_addr,
+		data + msg->fmt2.offset1, msg->fmt2.count1))
+		return -EFAULT;
+	xcRB->reply_control_blk_length = msg->fmt2.count1;
+
+	/* Copy data buffer to user */
+	if (msg->fmt2.count2)
+		if (copy_to_user(xcRB->reply_data_addr,
+			data + msg->fmt2.offset2, msg->fmt2.count2))
+			return -EFAULT;
+	xcRB->reply_data_length = msg->fmt2.count2;
+	return 0;
+}
+
+/**
+ * Copy results from a type 86 EP11 XCRB reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @xcRB: pointer to EP11 user request block
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+static int convert_type86_ep11_xcrb(struct zcrypt_device *zdev,
+				    struct ap_message *reply,
+				    struct ep11_urb *xcRB)
+{
+	struct type86_fmt2_msg *msg = reply->message;
+	char *data = reply->message;
+
+	if (xcRB->resp_len < msg->fmt2.count1)
+		return -EINVAL;
+
+	/* Copy response CPRB to user */
+	if (copy_to_user((char __force __user *)xcRB->resp,
+			 data + msg->fmt2.offset1, msg->fmt2.count1))
+		return -EFAULT;
+	xcRB->resp_len = msg->fmt2.count1;
+	return 0;
+}
+
+static int convert_type86_rng(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char *buffer)
+{
+	struct {
+		struct type86_hdr hdr;
+		struct type86_fmt2_ext fmt2;
+		struct CPRBX cprbx;
+	} __packed * msg = reply->message;
+	char *data = reply->message;
+
+	if (msg->cprbx.ccp_rtcode != 0 || msg->cprbx.ccp_rscode != 0)
+		return -EINVAL;
+	memcpy(buffer, data + msg->fmt2.offset2, msg->fmt2.count2);
+	return msg->fmt2.count2;
+}
+
+static int convert_response_ica(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    char __user *outputdata,
+			    unsigned int outputdatalength)
+{
+	struct type86x_reply *msg = reply->message;
+
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return convert_error(zdev, reply);
+	case TYPE86_RSP_CODE:
+		if (msg->cprbx.ccp_rtcode &&
+		   (msg->cprbx.ccp_rscode == 0x14f) &&
+		   (outputdatalength > 256)) {
+			if (zdev->max_exp_bit_length <= 17) {
+				zdev->max_exp_bit_length = 17;
+				return -EAGAIN;
+			} else
+				return -EINVAL;
+		}
+		if (msg->hdr.reply_code)
+			return convert_error(zdev, reply);
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_ica(zdev, reply,
+						  outputdata, outputdatalength);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
+			       zdev->ap_dev->qid, zdev->online);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+static int convert_response_xcrb(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    struct ica_xcRB *xcRB)
+{
+	struct type86x_reply *msg = reply->message;
+
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
+		return convert_error(zdev, reply);
+	case TYPE86_RSP_CODE:
+		if (msg->hdr.reply_code) {
+			memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32));
+			return convert_error(zdev, reply);
+		}
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_xcrb(zdev, reply, xcRB);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
+			       zdev->ap_dev->qid, zdev->online);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+static int convert_response_ep11_xcrb(struct zcrypt_device *zdev,
+	struct ap_message *reply, struct ep11_urb *xcRB)
+{
+	struct type86_ep11_reply *msg = reply->message;
+
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *)reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE87_RSP_CODE:
+		return convert_error(zdev, reply);
+	case TYPE86_RSP_CODE:
+		if (msg->hdr.reply_code)
+			return convert_error(zdev, reply);
+		if (msg->cprbx.cprb_ver_id == 0x04)
+			return convert_type86_ep11_xcrb(zdev, reply, xcRB);
+	/* Fall through, no break, incorrect cprb version is an unknown resp.*/
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
+			       zdev->ap_dev->qid, zdev->online);
+		return -EAGAIN; /* repeat the request on a different device. */
+	}
+}
+
+static int convert_response_rng(struct zcrypt_device *zdev,
+				 struct ap_message *reply,
+				 char *data)
+{
+	struct type86x_reply *msg = reply->message;
+
+	switch (msg->hdr.type) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return -EINVAL;
+	case TYPE86_RSP_CODE:
+		if (msg->hdr.reply_code)
+			return -EINVAL;
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_rng(zdev, reply, data);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		pr_err("Cryptographic device %x failed and was set offline\n",
+		       zdev->ap_dev->qid);
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
+			       zdev->ap_dev->qid, zdev->online);
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+/**
+ * This function is called from the AP bus code after a crypto request
+ * "msg" has finished with the reply message "reply".
+ * It is called from tasklet context.
+ * @ap_dev: pointer to the AP device
+ * @msg: pointer to the AP message
+ * @reply: pointer to the AP reply message
+ */
+static void zcrypt_msgtype6_receive(struct ap_device *ap_dev,
+				  struct ap_message *msg,
+				  struct ap_message *reply)
+{
+	static struct error_hdr error_reply = {
+		.type = TYPE82_RSP_CODE,
+		.reply_code = REP82_ERROR_MACHINE_FAILURE,
+	};
+	struct response_type *resp_type =
+		(struct response_type *) msg->private;
+	struct type86x_reply *t86r;
+	int length;
+
+	/* Copy the reply message to the request message buffer. */
+	if (!reply)
+		goto out;	/* ap_msg->rc indicates the error */
+	t86r = reply->message;
+	if (t86r->hdr.type == TYPE86_RSP_CODE &&
+		 t86r->cprbx.cprb_ver_id == 0x02) {
+		switch (resp_type->type) {
+		case PCIXCC_RESPONSE_TYPE_ICA:
+			length = sizeof(struct type86x_reply)
+				+ t86r->length - 2;
+			length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length);
+			memcpy(msg->message, reply->message, length);
+			break;
+		case PCIXCC_RESPONSE_TYPE_XCRB:
+			length = t86r->fmt2.offset2 + t86r->fmt2.count2;
+			length = min(MSGTYPE06_MAX_MSG_SIZE, length);
+			memcpy(msg->message, reply->message, length);
+			break;
+		default:
+			memcpy(msg->message, &error_reply,
+			       sizeof(error_reply));
+		}
+	} else
+		memcpy(msg->message, reply->message, sizeof(error_reply));
+out:
+	complete(&(resp_type->work));
+}
+
+/**
+ * This function is called from the AP bus code after a crypto request
+ * "msg" has finished with the reply message "reply".
+ * It is called from tasklet context.
+ * @ap_dev: pointer to the AP device
+ * @msg: pointer to the AP message
+ * @reply: pointer to the AP reply message
+ */
+static void zcrypt_msgtype6_receive_ep11(struct ap_device *ap_dev,
+					 struct ap_message *msg,
+					 struct ap_message *reply)
+{
+	static struct error_hdr error_reply = {
+		.type = TYPE82_RSP_CODE,
+		.reply_code = REP82_ERROR_MACHINE_FAILURE,
+	};
+	struct response_type *resp_type =
+		(struct response_type *)msg->private;
+	struct type86_ep11_reply *t86r;
+	int length;
+
+	/* Copy the reply message to the request message buffer. */
+	if (!reply)
+		goto out;	/* ap_msg->rc indicates the error */
+	t86r = reply->message;
+	if (t86r->hdr.type == TYPE86_RSP_CODE &&
+	    t86r->cprbx.cprb_ver_id == 0x04) {
+		switch (resp_type->type) {
+		case PCIXCC_RESPONSE_TYPE_EP11:
+			length = t86r->fmt2.offset1 + t86r->fmt2.count1;
+			length = min(MSGTYPE06_MAX_MSG_SIZE, length);
+			memcpy(msg->message, reply->message, length);
+			break;
+		default:
+			memcpy(msg->message, &error_reply, sizeof(error_reply));
+		}
+	} else {
+		memcpy(msg->message, reply->message, sizeof(error_reply));
+	  }
+out:
+	complete(&(resp_type->work));
+}
+
+static atomic_t zcrypt_step = ATOMIC_INIT(0);
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a modexpo request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @mex: pointer to the modexpo request buffer
+ */
+static long zcrypt_msgtype6_modexpo(struct zcrypt_device *zdev,
+				  struct ica_rsa_modexpo *mex)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_ICA,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response_ica(zdev, &ap_msg,
+						  mex->outputdata,
+						  mex->outputdatalength);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	free_page((unsigned long) ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a modexpo_crt request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @crt: pointer to the modexpoc_crt request buffer
+ */
+static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_device *zdev,
+				      struct ica_rsa_modexpo_crt *crt)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_ICA,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response_ica(zdev, &ap_msg,
+						  crt->outputdata,
+						  crt->outputdatalength);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	free_page((unsigned long) ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a send_cprb request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @xcRB: pointer to the send_cprb request buffer
+ */
+static long zcrypt_msgtype6_send_cprb(struct zcrypt_device *zdev,
+				    struct ica_xcRB *xcRB)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = XCRB_msg_to_type6CPRB_msgX(zdev, &ap_msg, xcRB);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response_xcrb(zdev, &ap_msg, xcRB);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kzfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the CEX4P
+ * device to handle a send_ep11_cprb request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  CEX4P device to the request distributor
+ * @xcRB: pointer to the ep11 user request block
+ */
+static long zcrypt_msgtype6_send_ep11_cprb(struct zcrypt_device *zdev,
+						struct ep11_urb *xcrb)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_EP11,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive_ep11;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = xcrb_msg_to_type6_ep11cprb_msgx(zdev, &ap_msg, xcrb);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response_ep11_xcrb(zdev, &ap_msg, xcrb);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+
+out_free:
+	kzfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to generate random data.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @buffer: pointer to a memory page to return random data
+ */
+
+static long zcrypt_msgtype6_rng(struct zcrypt_device *zdev,
+				    char *buffer)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rng_type6CPRB_msgX(zdev->ap_dev, &ap_msg, ZCRYPT_RNG_BUFFER_SIZE);
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0) {
+		rc = ap_msg.rc;
+		if (rc == 0)
+			rc = convert_response_rng(zdev, &ap_msg, buffer);
+	} else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The crypto operations for a PCIXCC/CEX2C card.
+ */
+static struct zcrypt_ops zcrypt_msgtype6_norng_ops = {
+	.owner = THIS_MODULE,
+	.name = MSGTYPE06_NAME,
+	.variant = MSGTYPE06_VARIANT_NORNG,
+	.rsa_modexpo = zcrypt_msgtype6_modexpo,
+	.rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt,
+	.send_cprb = zcrypt_msgtype6_send_cprb,
+};
+
+static struct zcrypt_ops zcrypt_msgtype6_ops = {
+	.owner = THIS_MODULE,
+	.name = MSGTYPE06_NAME,
+	.variant = MSGTYPE06_VARIANT_DEFAULT,
+	.rsa_modexpo = zcrypt_msgtype6_modexpo,
+	.rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt,
+	.send_cprb = zcrypt_msgtype6_send_cprb,
+	.rng = zcrypt_msgtype6_rng,
+};
+
+static struct zcrypt_ops zcrypt_msgtype6_ep11_ops = {
+	.owner = THIS_MODULE,
+	.name = MSGTYPE06_NAME,
+	.variant = MSGTYPE06_VARIANT_EP11,
+	.rsa_modexpo = NULL,
+	.rsa_modexpo_crt = NULL,
+	.send_ep11_cprb = zcrypt_msgtype6_send_ep11_cprb,
+};
+
+int __init zcrypt_msgtype6_init(void)
+{
+	zcrypt_msgtype_register(&zcrypt_msgtype6_norng_ops);
+	zcrypt_msgtype_register(&zcrypt_msgtype6_ops);
+	zcrypt_msgtype_register(&zcrypt_msgtype6_ep11_ops);
+	return 0;
+}
+
+void __exit zcrypt_msgtype6_exit(void)
+{
+	zcrypt_msgtype_unregister(&zcrypt_msgtype6_norng_ops);
+	zcrypt_msgtype_unregister(&zcrypt_msgtype6_ops);
+	zcrypt_msgtype_unregister(&zcrypt_msgtype6_ep11_ops);
+}
+
+module_init(zcrypt_msgtype6_init);
+module_exit(zcrypt_msgtype6_exit);
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.h b/drivers/s390/crypto/zcrypt_msgtype6.h
new file mode 100644
index 0000000..2072475
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype6.h
@@ -0,0 +1,171 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#ifndef _ZCRYPT_MSGTYPE6_H_
+#define _ZCRYPT_MSGTYPE6_H_
+
+#include <asm/zcrypt.h>
+
+#define MSGTYPE06_NAME			"zcrypt_msgtype6"
+#define MSGTYPE06_VARIANT_DEFAULT	0
+#define MSGTYPE06_VARIANT_NORNG		1
+#define MSGTYPE06_VARIANT_EP11		2
+
+#define MSGTYPE06_MAX_MSG_SIZE		(12*1024)
+
+/**
+ * The type 6 message family is associated with PCICC or PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB, both of which
+ * are described below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type6_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x06				*/
+	unsigned char reserved2[2];	/* 0x0000			*/
+	unsigned char right[4];		/* 0x00000000			*/
+	unsigned char reserved3[2];	/* 0x0000			*/
+	unsigned char reserved4[2];	/* 0x0000			*/
+	unsigned char apfs[4];		/* 0x00000000			*/
+	unsigned int  offset1;		/* 0x00000058 (offset to CPRB)	*/
+	unsigned int  offset2;		/* 0x00000000			*/
+	unsigned int  offset3;		/* 0x00000000			*/
+	unsigned int  offset4;		/* 0x00000000			*/
+	unsigned char agent_id[16];	/* PCICC:			*/
+					/*    0x0100			*/
+					/*    0x4343412d4150504c202020	*/
+					/*    0x010101			*/
+					/* PCIXCC:			*/
+					/*    0x4341000000000000	*/
+					/*    0x0000000000000000	*/
+	unsigned char rqid[2];		/* rqid.  internal to 603	*/
+	unsigned char reserved5[2];	/* 0x0000			*/
+	unsigned char function_code[2];	/* for PKD, 0x5044 (ascii 'PD')	*/
+	unsigned char reserved6[2];	/* 0x0000			*/
+	unsigned int  ToCardLen1;	/* (request CPRB len + 3) & -4	*/
+	unsigned int  ToCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  ToCardLen3;	/* 0x00000000			*/
+	unsigned int  ToCardLen4;	/* 0x00000000			*/
+	unsigned int  FromCardLen1;	/* response buffer length	*/
+	unsigned int  FromCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  FromCardLen3;	/* 0x00000000			*/
+	unsigned int  FromCardLen4;	/* 0x00000000			*/
+} __packed;
+
+/**
+ * The type 86 message family is associated with PCICC and PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB.  The CPRB is
+ * the same as the request CPRB, which is described above.
+ *
+ * If format is 1, an error condition exists and no data beyond
+ * the 8-byte message header is of interest.
+ *
+ * The non-error message is shown below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type86_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x86				*/
+	unsigned char format;		/* 0x01 (error) or 0x02 (ok)	*/
+	unsigned char reserved2;	/* 0x00				*/
+	unsigned char reply_code;	/* reply code (see above)	*/
+	unsigned char reserved3[3];	/* 0x000000			*/
+} __packed;
+
+#define TYPE86_RSP_CODE 0x86
+#define TYPE87_RSP_CODE 0x87
+#define TYPE86_FMT2	0x02
+
+struct type86_fmt2_ext {
+	unsigned char	  reserved[4];	/* 0x00000000			*/
+	unsigned char	  apfs[4];	/* final status			*/
+	unsigned int	  count1;	/* length of CPRB + parameters	*/
+	unsigned int	  offset1;	/* offset to CPRB		*/
+	unsigned int	  count2;	/* 0x00000000			*/
+	unsigned int	  offset2;	/* db offset 0x00000000 for PKD	*/
+	unsigned int	  count3;	/* 0x00000000			*/
+	unsigned int	  offset3;	/* 0x00000000			*/
+	unsigned int	  count4;	/* 0x00000000			*/
+	unsigned int	  offset4;	/* 0x00000000			*/
+} __packed;
+
+/**
+ * Prepare a type6 CPRB message for random number generation
+ *
+ * @ap_dev: AP device pointer
+ * @ap_msg: pointer to AP message
+ */
+static inline void rng_type6CPRB_msgX(struct ap_device *ap_dev,
+			       struct ap_message *ap_msg,
+			       unsigned random_number_length)
+{
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		char function_code[2];
+		short int rule_length;
+		char rule[8];
+		short int verb_length;
+		short int key_length;
+	} __packed * msg = ap_msg->message;
+	static struct type6_hdr static_type6_hdrX = {
+		.type		= 0x06,
+		.offset1	= 0x00000058,
+		.agent_id	= {'C', 'A'},
+		.function_code	= {'R', 'L'},
+		.ToCardLen1	= sizeof(*msg) - sizeof(msg->hdr),
+		.FromCardLen1	= sizeof(*msg) - sizeof(msg->hdr),
+	};
+	static struct CPRBX local_cprbx = {
+		.cprb_len	= 0x00dc,
+		.cprb_ver_id	= 0x02,
+		.func_id	= {0x54, 0x32},
+		.req_parml	= sizeof(*msg) - sizeof(msg->hdr) -
+				  sizeof(msg->cprbx),
+		.rpl_msgbl	= sizeof(*msg) - sizeof(msg->hdr),
+	};
+
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.FromCardLen2 = random_number_length,
+	msg->cprbx = local_cprbx;
+	msg->cprbx.rpl_datal = random_number_length,
+	msg->cprbx.domain = AP_QID_QUEUE(ap_dev->qid);
+	memcpy(msg->function_code, msg->hdr.function_code, 0x02);
+	msg->rule_length = 0x0a;
+	memcpy(msg->rule, "RANDOM  ", 8);
+	msg->verb_length = 0x02;
+	msg->key_length = 0x02;
+	ap_msg->length = sizeof(*msg);
+}
+
+int zcrypt_msgtype6_init(void);
+void zcrypt_msgtype6_exit(void);
+
+#endif /* _ZCRYPT_MSGTYPE6_H_ */
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
new file mode 100644
index 0000000..f418527
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -0,0 +1,368 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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/err.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/atomic.h>
+#include <asm/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_msgtype6.h"
+#include "zcrypt_pcixcc.h"
+#include "zcrypt_cca_key.h"
+
+#define PCIXCC_MIN_MOD_SIZE	 16	/*  128 bits	*/
+#define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
+#define PCIXCC_MAX_MOD_SIZE	256	/* 2048 bits	*/
+#define CEX3C_MIN_MOD_SIZE	PCIXCC_MIN_MOD_SIZE
+#define CEX3C_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define PCIXCC_MCL2_SPEED_RATING	7870
+#define PCIXCC_MCL3_SPEED_RATING	7870
+#define CEX2C_SPEED_RATING		7000
+#define CEX3C_SPEED_RATING		6500
+
+#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c  /* max size type6 v2 crt message */
+#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
+
+#define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024)
+
+#define PCIXCC_CLEANUP_TIME	(15*HZ)
+
+#define CEIL4(x) ((((x)+3)/4)*4)
+
+struct response_type {
+	struct completion work;
+	int type;
+};
+#define PCIXCC_RESPONSE_TYPE_ICA  0
+#define PCIXCC_RESPONSE_TYPE_XCRB 1
+
+static struct ap_device_id zcrypt_pcixcc_ids[] = {
+	{ AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) },
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX2C) },
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX3C) },
+	{ /* end of list */ },
+};
+
+MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids);
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static int zcrypt_pcixcc_probe(struct ap_device *ap_dev);
+static void zcrypt_pcixcc_remove(struct ap_device *ap_dev);
+
+static struct ap_driver zcrypt_pcixcc_driver = {
+	.probe = zcrypt_pcixcc_probe,
+	.remove = zcrypt_pcixcc_remove,
+	.ids = zcrypt_pcixcc_ids,
+	.request_timeout = PCIXCC_CLEANUP_TIME,
+};
+
+/**
+ * Micro-code detection function. Its sends a message to a pcixcc card
+ * to find out the microcode level.
+ * @ap_dev: pointer to the AP device.
+ */
+static int zcrypt_pcixcc_mcl(struct ap_device *ap_dev)
+{
+	static unsigned char msg[] = {
+		0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00,
+		0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A,
+		0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20,
+		0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05,
+		0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,
+		0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55,
+		0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,
+		0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,
+		0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22,
+		0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB,
+		0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54,
+		0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00,
+		0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00,
+		0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40,
+		0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C,
+		0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF,
+		0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9,
+		0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63,
+		0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5,
+		0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A,
+		0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01,
+		0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28,
+		0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91,
+		0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5,
+		0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C,
+		0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98,
+		0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96,
+		0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19,
+		0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47,
+		0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36,
+		0xF1,0x3D,0x93,0x53
+	};
+	unsigned long long psmid;
+	struct CPRBX *cprbx;
+	char *reply;
+	int rc, i;
+
+	reply = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!reply)
+		return -ENOMEM;
+
+	rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, msg, sizeof(msg));
+	if (rc)
+		goto out_free;
+
+	/* Wait for the test message to complete. */
+	for (i = 0; i < 6; i++) {
+		msleep(300);
+		rc = ap_recv(ap_dev->qid, &psmid, reply, 4096);
+		if (rc == 0 && psmid == 0x0102030405060708ULL)
+			break;
+	}
+
+	if (i >= 6) {
+		/* Got no answer. */
+		rc = -ENODEV;
+		goto out_free;
+	}
+
+	cprbx = (struct CPRBX *) (reply + 48);
+	if (cprbx->ccp_rtcode == 8 && cprbx->ccp_rscode == 33)
+		rc = ZCRYPT_PCIXCC_MCL2;
+	else
+		rc = ZCRYPT_PCIXCC_MCL3;
+out_free:
+	free_page((unsigned long) reply);
+	return rc;
+}
+
+/**
+ * Large random number detection function. Its sends a message to a pcixcc
+ * card to find out if large random numbers are supported.
+ * @ap_dev: pointer to the AP device.
+ *
+ * Returns 1 if large random numbers are supported, 0 if not and < 0 on error.
+ */
+static int zcrypt_pcixcc_rng_supported(struct ap_device *ap_dev)
+{
+	struct ap_message ap_msg;
+	unsigned long long psmid;
+	struct {
+		struct type86_hdr hdr;
+		struct type86_fmt2_ext fmt2;
+		struct CPRBX cprbx;
+	} __attribute__((packed)) *reply;
+	int rc, i;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+
+	rng_type6CPRB_msgX(ap_dev, &ap_msg, 4);
+	rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, ap_msg.message,
+		     ap_msg.length);
+	if (rc)
+		goto out_free;
+
+	/* Wait for the test message to complete. */
+	for (i = 0; i < 2 * HZ; i++) {
+		msleep(1000 / HZ);
+		rc = ap_recv(ap_dev->qid, &psmid, ap_msg.message, 4096);
+		if (rc == 0 && psmid == 0x0102030405060708ULL)
+			break;
+	}
+
+	if (i >= 2 * HZ) {
+		/* Got no answer. */
+		rc = -ENODEV;
+		goto out_free;
+	}
+
+	reply = ap_msg.message;
+	if (reply->cprbx.ccp_rtcode == 0 && reply->cprbx.ccp_rscode == 0)
+		rc = 1;
+	else
+		rc = 0;
+out_free:
+	free_page((unsigned long) ap_msg.message);
+	return rc;
+}
+
+/**
+ * Probe function for PCIXCC/CEX2C cards. It always accepts the AP device
+ * since the bus_match already checked the hardware type. The PCIXCC
+ * cards come in two flavours: micro code level 2 and micro code level 3.
+ * This is checked by sending a test message to the device.
+ * @ap_dev: pointer to the AP device.
+ */
+static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev;
+	int rc = 0;
+
+	zdev = zcrypt_device_alloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE);
+	if (!zdev)
+		return -ENOMEM;
+	zdev->ap_dev = ap_dev;
+	zdev->online = 1;
+	switch (ap_dev->device_type) {
+	case AP_DEVICE_TYPE_PCIXCC:
+		rc = zcrypt_pcixcc_mcl(ap_dev);
+		if (rc < 0) {
+			zcrypt_device_free(zdev);
+			return rc;
+		}
+		zdev->user_space_type = rc;
+		if (rc == ZCRYPT_PCIXCC_MCL2) {
+			zdev->type_string = "PCIXCC_MCL2";
+			zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING;
+			zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
+			zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
+		} else {
+			zdev->type_string = "PCIXCC_MCL3";
+			zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING;
+			zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
+			zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
+		}
+		break;
+	case AP_DEVICE_TYPE_CEX2C:
+		zdev->user_space_type = ZCRYPT_CEX2C;
+		zdev->type_string = "CEX2C";
+		zdev->speed_rating = CEX2C_SPEED_RATING;
+		zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
+		zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+		zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
+		break;
+	case AP_DEVICE_TYPE_CEX3C:
+		zdev->user_space_type = ZCRYPT_CEX3C;
+		zdev->type_string = "CEX3C";
+		zdev->speed_rating = CEX3C_SPEED_RATING;
+		zdev->min_mod_size = CEX3C_MIN_MOD_SIZE;
+		zdev->max_mod_size = CEX3C_MAX_MOD_SIZE;
+		zdev->max_exp_bit_length = CEX3C_MAX_MOD_SIZE;
+		break;
+	default:
+		goto out_free;
+	}
+
+	rc = zcrypt_pcixcc_rng_supported(ap_dev);
+	if (rc < 0) {
+		zcrypt_device_free(zdev);
+		return rc;
+	}
+	if (rc)
+		zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+						   MSGTYPE06_VARIANT_DEFAULT);
+	else
+		zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+						   MSGTYPE06_VARIANT_NORNG);
+	ap_dev->reply = &zdev->reply;
+	ap_dev->private = zdev;
+	rc = zcrypt_device_register(zdev);
+	if (rc)
+		goto out_free;
+	return 0;
+
+ out_free:
+	ap_dev->private = NULL;
+	zcrypt_msgtype_release(zdev->ops);
+	zcrypt_device_free(zdev);
+	return rc;
+}
+
+/**
+ * This is called to remove the extended PCIXCC/CEX2C driver information
+ * if an AP device is removed.
+ */
+static void zcrypt_pcixcc_remove(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops = zdev->ops;
+
+	zcrypt_device_unregister(zdev);
+	zcrypt_msgtype_release(zops);
+}
+
+int __init zcrypt_pcixcc_init(void)
+{
+	return ap_driver_register(&zcrypt_pcixcc_driver, THIS_MODULE, "pcixcc");
+}
+
+void zcrypt_pcixcc_exit(void)
+{
+	ap_driver_unregister(&zcrypt_pcixcc_driver);
+}
+
+module_init(zcrypt_pcixcc_init);
+module_exit(zcrypt_pcixcc_exit);
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_pcixcc.h
new file mode 100644
index 0000000..eacafc8
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_pcixcc.h
@@ -0,0 +1,33 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  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>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.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.
+ */
+
+#ifndef _ZCRYPT_PCIXCC_H_
+#define _ZCRYPT_PCIXCC_H_
+
+int zcrypt_pcixcc_init(void);
+void zcrypt_pcixcc_exit(void);
+
+#endif /* _ZCRYPT_PCIXCC_H_ */