| /* |
| * 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 |
| |
| /* |
| * Identifier for Crypto Request Performance Index |
| */ |
| enum crypto_ops { |
| MEX_1K, |
| MEX_2K, |
| MEX_4K, |
| CRT_1K, |
| CRT_2K, |
| CRT_4K, |
| HWRNG, |
| SECKEY, |
| NUM_OPS |
| }; |
| |
| struct zcrypt_queue; |
| |
| struct zcrypt_ops { |
| long (*rsa_modexpo)(struct zcrypt_queue *, struct ica_rsa_modexpo *); |
| long (*rsa_modexpo_crt)(struct zcrypt_queue *, |
| struct ica_rsa_modexpo_crt *); |
| long (*send_cprb)(struct zcrypt_queue *, struct ica_xcRB *, |
| struct ap_message *); |
| long (*send_ep11_cprb)(struct zcrypt_queue *, struct ep11_urb *, |
| struct ap_message *); |
| long (*rng)(struct zcrypt_queue *, char *, struct ap_message *); |
| struct list_head list; /* zcrypt ops list. */ |
| struct module *owner; |
| int variant; |
| char name[128]; |
| }; |
| |
| struct zcrypt_card { |
| struct list_head list; /* Device list. */ |
| struct list_head zqueues; /* List of zcrypt queues */ |
| struct kref refcount; /* device refcounting */ |
| struct ap_card *card; /* The "real" ap card device. */ |
| 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 max_exp_bit_length; |
| int speed_rating[NUM_OPS]; /* Speed idx of crypto ops. */ |
| atomic_t load; /* Utilization of the crypto device */ |
| |
| int request_count; /* # current requests. */ |
| }; |
| |
| struct zcrypt_queue { |
| struct list_head list; /* Device list. */ |
| struct kref refcount; /* device refcounting */ |
| struct zcrypt_card *zcard; |
| struct zcrypt_ops *ops; /* Crypto operations. */ |
| struct ap_queue *queue; /* The "real" ap queue device. */ |
| int online; /* User online/offline */ |
| |
| atomic_t load; /* Utilization of the crypto device */ |
| |
| int request_count; /* # current requests. */ |
| |
| struct ap_message reply; /* Per-device reply structure. */ |
| }; |
| |
| /* transport layer rescanning */ |
| extern atomic_t zcrypt_rescan_req; |
| |
| extern spinlock_t zcrypt_list_lock; |
| extern int zcrypt_device_count; |
| extern struct list_head zcrypt_card_list; |
| |
| #define for_each_zcrypt_card(_zc) \ |
| list_for_each_entry(_zc, &zcrypt_card_list, list) |
| |
| #define for_each_zcrypt_queue(_zq, _zc) \ |
| list_for_each_entry(_zq, &(_zc)->zqueues, list) |
| |
| struct zcrypt_card *zcrypt_card_alloc(void); |
| void zcrypt_card_free(struct zcrypt_card *); |
| void zcrypt_card_get(struct zcrypt_card *); |
| int zcrypt_card_put(struct zcrypt_card *); |
| int zcrypt_card_register(struct zcrypt_card *); |
| void zcrypt_card_unregister(struct zcrypt_card *); |
| struct zcrypt_card *zcrypt_card_get_best(unsigned int *, |
| unsigned int, unsigned int); |
| void zcrypt_card_put_best(struct zcrypt_card *, unsigned int); |
| |
| struct zcrypt_queue *zcrypt_queue_alloc(size_t); |
| void zcrypt_queue_free(struct zcrypt_queue *); |
| void zcrypt_queue_get(struct zcrypt_queue *); |
| int zcrypt_queue_put(struct zcrypt_queue *); |
| int zcrypt_queue_register(struct zcrypt_queue *); |
| void zcrypt_queue_unregister(struct zcrypt_queue *); |
| void zcrypt_queue_force_online(struct zcrypt_queue *, int); |
| struct zcrypt_queue *zcrypt_queue_get_best(unsigned int, unsigned int); |
| void zcrypt_queue_put_best(struct zcrypt_queue *, unsigned int); |
| |
| int zcrypt_rng_device_add(void); |
| void zcrypt_rng_device_remove(void); |
| |
| void zcrypt_msgtype_register(struct zcrypt_ops *); |
| void zcrypt_msgtype_unregister(struct zcrypt_ops *); |
| struct zcrypt_ops *zcrypt_msgtype(unsigned char *, int); |
| int zcrypt_api_init(void); |
| void zcrypt_api_exit(void); |
| long zcrypt_send_cprb(struct ica_xcRB *xcRB); |
| void zcrypt_device_status_mask(struct zcrypt_device_matrix *devstatus); |
| |
| #endif /* _ZCRYPT_API_H_ */ |
