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Diffstat (limited to 'drivers/s390/crypto/zcrypt_api.h')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_api.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h new file mode 100644 index 000000000000..de4877ee618f --- /dev/null +++ b/drivers/s390/crypto/zcrypt_api.h @@ -0,0 +1,141 @@ +/* + * linux/drivers/s390/crypto/zcrypt_api.h + * + * zcrypt 2.1.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * 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> + * + * 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_ + +/** + * Macro definitions + * + * PDEBUG debugs in the form "zcrypt: function_name -> message" + * + * PRINTK is like PDEBUG, except that it is always enabled + * PRINTKN is like PRINTK, except that it does not include the function name + * PRINTKW is like PRINTK, except that it uses KERN_WARNING + * PRINTKC is like PRINTK, except that it uses KERN_CRIT + */ +#define DEV_NAME "zcrypt" + +#define PRINTK(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKN(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": " fmt, ## args) +#define PRINTKW(fmt, args...) \ + printk(KERN_WARNING DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKC(fmt, args...) \ + printk(KERN_CRIT DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) + +#ifdef ZCRYPT_DEBUG +#define PDEBUG(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#else +#define PDEBUG(fmt, args...) do {} while (0) +#endif + +#include "ap_bus.h" +#include <asm/zcrypt.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 + +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 *); +}; + +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. */ +}; + +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 *); +int zcrypt_api_init(void); +void zcrypt_api_exit(void); + +#endif /* _ZCRYPT_API_H_ */ |