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2dbc2418 MS |
1 | /* |
2 | * linux/drivers/s390/crypto/zcrypt_api.h | |
3 | * | |
5432114b | 4 | * zcrypt 2.1.0 |
2dbc2418 MS |
5 | * |
6 | * Copyright (C) 2001, 2006 IBM Corporation | |
7 | * Author(s): Robert Burroughs | |
8 | * Eric Rossman (edrossma@us.ibm.com) | |
9 | * Cornelia Huck <cornelia.huck@de.ibm.com> | |
10 | * | |
11 | * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) | |
12 | * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> | |
13 | * Ralph Wuerthner <rwuerthn@de.ibm.com> | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2, or (at your option) | |
18 | * any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
28 | */ | |
29 | ||
30 | #ifndef _ZCRYPT_API_H_ | |
31 | #define _ZCRYPT_API_H_ | |
32 | ||
33 | /** | |
34 | * Macro definitions | |
35 | * | |
36 | * PDEBUG debugs in the form "zcrypt: function_name -> message" | |
37 | * | |
38 | * PRINTK is like PDEBUG, except that it is always enabled | |
39 | * PRINTKN is like PRINTK, except that it does not include the function name | |
40 | * PRINTKW is like PRINTK, except that it uses KERN_WARNING | |
41 | * PRINTKC is like PRINTK, except that it uses KERN_CRIT | |
42 | */ | |
43 | #define DEV_NAME "zcrypt" | |
44 | ||
45 | #define PRINTK(fmt, args...) \ | |
46 | printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) | |
47 | #define PRINTKN(fmt, args...) \ | |
48 | printk(KERN_DEBUG DEV_NAME ": " fmt, ## args) | |
49 | #define PRINTKW(fmt, args...) \ | |
50 | printk(KERN_WARNING DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) | |
51 | #define PRINTKC(fmt, args...) \ | |
52 | printk(KERN_CRIT DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) | |
53 | ||
54 | #ifdef ZCRYPT_DEBUG | |
55 | #define PDEBUG(fmt, args...) \ | |
56 | printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) | |
57 | #else | |
58 | #define PDEBUG(fmt, args...) do {} while (0) | |
59 | #endif | |
60 | ||
61 | #include "ap_bus.h" | |
62 | #include <asm/zcrypt.h> | |
63 | ||
64 | /* deprecated status calls */ | |
65 | #define ICAZ90STATUS _IOR(ZCRYPT_IOCTL_MAGIC, 0x10, struct ica_z90_status) | |
66 | #define Z90STAT_PCIXCCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x43, int) | |
67 | ||
68 | /** | |
69 | * This structure is deprecated and the corresponding ioctl() has been | |
70 | * replaced with individual ioctl()s for each piece of data! | |
71 | */ | |
72 | struct ica_z90_status { | |
73 | int totalcount; | |
74 | int leedslitecount; // PCICA | |
75 | int leeds2count; // PCICC | |
76 | // int PCIXCCCount; is not in struct for backward compatibility | |
77 | int requestqWaitCount; | |
78 | int pendingqWaitCount; | |
79 | int totalOpenCount; | |
80 | int cryptoDomain; | |
81 | // status: 0=not there, 1=PCICA, 2=PCICC, 3=PCIXCC_MCL2, 4=PCIXCC_MCL3, | |
82 | // 5=CEX2C | |
83 | unsigned char status[64]; | |
84 | // qdepth: # work elements waiting for each device | |
85 | unsigned char qdepth[64]; | |
86 | }; | |
87 | ||
88 | /** | |
89 | * device type for an actual device is either PCICA, PCICC, PCIXCC_MCL2, | |
90 | * PCIXCC_MCL3, CEX2C, or CEX2A | |
91 | * | |
92 | * NOTE: PCIXCC_MCL3 refers to a PCIXCC with May 2004 version of Licensed | |
93 | * Internal Code (LIC) (EC J12220 level 29). | |
94 | * PCIXCC_MCL2 refers to any LIC before this level. | |
95 | */ | |
96 | #define ZCRYPT_PCICA 1 | |
97 | #define ZCRYPT_PCICC 2 | |
98 | #define ZCRYPT_PCIXCC_MCL2 3 | |
99 | #define ZCRYPT_PCIXCC_MCL3 4 | |
100 | #define ZCRYPT_CEX2C 5 | |
101 | #define ZCRYPT_CEX2A 6 | |
102 | ||
103 | struct zcrypt_device; | |
104 | ||
105 | struct zcrypt_ops { | |
106 | long (*rsa_modexpo)(struct zcrypt_device *, struct ica_rsa_modexpo *); | |
107 | long (*rsa_modexpo_crt)(struct zcrypt_device *, | |
108 | struct ica_rsa_modexpo_crt *); | |
5432114b | 109 | long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *); |
2dbc2418 MS |
110 | }; |
111 | ||
112 | struct zcrypt_device { | |
113 | struct list_head list; /* Device list. */ | |
114 | spinlock_t lock; /* Per device lock. */ | |
115 | struct kref refcount; /* device refcounting */ | |
116 | struct ap_device *ap_dev; /* The "real" ap device. */ | |
117 | struct zcrypt_ops *ops; /* Crypto operations. */ | |
118 | int online; /* User online/offline */ | |
119 | ||
120 | int user_space_type; /* User space device id. */ | |
121 | char *type_string; /* User space device name. */ | |
122 | int min_mod_size; /* Min number of bits. */ | |
123 | int max_mod_size; /* Max number of bits. */ | |
124 | int short_crt; /* Card has crt length restriction. */ | |
125 | int speed_rating; /* Speed of the crypto device. */ | |
126 | ||
127 | int request_count; /* # current requests. */ | |
128 | ||
129 | struct ap_message reply; /* Per-device reply structure. */ | |
130 | }; | |
131 | ||
132 | struct zcrypt_device *zcrypt_device_alloc(size_t); | |
133 | void zcrypt_device_free(struct zcrypt_device *); | |
134 | void zcrypt_device_get(struct zcrypt_device *); | |
135 | int zcrypt_device_put(struct zcrypt_device *); | |
136 | int zcrypt_device_register(struct zcrypt_device *); | |
137 | void zcrypt_device_unregister(struct zcrypt_device *); | |
138 | int zcrypt_api_init(void); | |
139 | void zcrypt_api_exit(void); | |
140 | ||
141 | #endif /* _ZCRYPT_API_H_ */ |