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6684af1a MS |
1 | /* |
2 | * linux/drivers/s390/crypto/zcrypt_pcixcc.c | |
3 | * | |
5432114b | 4 | * zcrypt 2.1.0 |
6684af1a MS |
5 | * |
6 | * Copyright (C) 2001, 2006 IBM Corporation | |
7 | * Author(s): Robert Burroughs | |
8 | * Eric Rossman (edrossma@us.ibm.com) | |
9 | * | |
10 | * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) | |
11 | * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> | |
12 | * Ralph Wuerthner <rwuerthn@de.ibm.com> | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2, or (at your option) | |
17 | * any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | */ | |
28 | ||
29 | #include <linux/module.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/err.h> | |
32 | #include <linux/delay.h> | |
33 | #include <asm/atomic.h> | |
34 | #include <asm/uaccess.h> | |
35 | ||
36 | #include "ap_bus.h" | |
37 | #include "zcrypt_api.h" | |
38 | #include "zcrypt_error.h" | |
39 | #include "zcrypt_pcicc.h" | |
40 | #include "zcrypt_pcixcc.h" | |
41 | #include "zcrypt_cca_key.h" | |
42 | ||
43 | #define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */ | |
44 | #define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */ | |
45 | #define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */ | |
46 | ||
47 | #define PCIXCC_MCL2_SPEED_RATING 7870 /* FIXME: needs finetuning */ | |
48 | #define PCIXCC_MCL3_SPEED_RATING 7870 | |
49 | #define CEX2C_SPEED_RATING 8540 | |
50 | ||
51 | #define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */ | |
52 | #define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ | |
53 | ||
54 | #define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024) | |
55 | #define PCIXCC_MAX_XCRB_RESPONSE_SIZE PCIXCC_MAX_XCRB_MESSAGE_SIZE | |
56 | #define PCIXCC_MAX_XCRB_DATA_SIZE (11*1024) | |
57 | #define PCIXCC_MAX_XCRB_REPLY_SIZE (5*1024) | |
58 | ||
59 | #define PCIXCC_MAX_RESPONSE_SIZE PCIXCC_MAX_XCRB_RESPONSE_SIZE | |
60 | ||
61 | #define PCIXCC_CLEANUP_TIME (15*HZ) | |
62 | ||
5432114b RW |
63 | #define CEIL4(x) ((((x)+3)/4)*4) |
64 | ||
65 | struct response_type { | |
66 | struct completion work; | |
67 | int type; | |
68 | }; | |
69 | #define PCIXCC_RESPONSE_TYPE_ICA 0 | |
70 | #define PCIXCC_RESPONSE_TYPE_XCRB 1 | |
71 | ||
6684af1a MS |
72 | static struct ap_device_id zcrypt_pcixcc_ids[] = { |
73 | { AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) }, | |
74 | { AP_DEVICE(AP_DEVICE_TYPE_CEX2C) }, | |
75 | { /* end of list */ }, | |
76 | }; | |
77 | ||
78 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | |
79 | MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids); | |
80 | MODULE_AUTHOR("IBM Corporation"); | |
81 | MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " | |
82 | "Copyright 2001, 2006 IBM Corporation"); | |
83 | MODULE_LICENSE("GPL"); | |
84 | #endif | |
85 | ||
86 | static int zcrypt_pcixcc_probe(struct ap_device *ap_dev); | |
87 | static void zcrypt_pcixcc_remove(struct ap_device *ap_dev); | |
88 | static void zcrypt_pcixcc_receive(struct ap_device *, struct ap_message *, | |
89 | struct ap_message *); | |
90 | ||
91 | static struct ap_driver zcrypt_pcixcc_driver = { | |
92 | .probe = zcrypt_pcixcc_probe, | |
93 | .remove = zcrypt_pcixcc_remove, | |
94 | .receive = zcrypt_pcixcc_receive, | |
95 | .ids = zcrypt_pcixcc_ids, | |
af512ed0 | 96 | .request_timeout = PCIXCC_CLEANUP_TIME, |
6684af1a MS |
97 | }; |
98 | ||
99 | /** | |
100 | * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C | |
101 | * card in a type6 message. The 3 fields that must be filled in at execution | |
102 | * time are req_parml, rpl_parml and usage_domain. | |
103 | * Everything about this interface is ascii/big-endian, since the | |
104 | * device does *not* have 'Intel inside'. | |
105 | * | |
106 | * The CPRBX is followed immediately by the parm block. | |
107 | * The parm block contains: | |
108 | * - function code ('PD' 0x5044 or 'PK' 0x504B) | |
109 | * - rule block (one of:) | |
110 | * + 0x000A 'PKCS-1.2' (MCL2 'PD') | |
111 | * + 0x000A 'ZERO-PAD' (MCL2 'PK') | |
112 | * + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD') | |
113 | * + 0x000A 'MRP ' (MCL3 'PK' or CEX2C 'PK') | |
114 | * - VUD block | |
115 | */ | |
116 | static struct CPRBX static_cprbx = { | |
117 | .cprb_len = 0x00DC, | |
118 | .cprb_ver_id = 0x02, | |
119 | .func_id = {0x54,0x32}, | |
120 | }; | |
121 | ||
122 | /** | |
123 | * Convert a ICAMEX message to a type6 MEX message. | |
124 | * | |
125 | * @zdev: crypto device pointer | |
126 | * @ap_msg: pointer to AP message | |
127 | * @mex: pointer to user input data | |
128 | * | |
129 | * Returns 0 on success or -EFAULT. | |
130 | */ | |
131 | static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev, | |
132 | struct ap_message *ap_msg, | |
133 | struct ica_rsa_modexpo *mex) | |
134 | { | |
135 | static struct type6_hdr static_type6_hdrX = { | |
136 | .type = 0x06, | |
137 | .offset1 = 0x00000058, | |
138 | .agent_id = {'C','A',}, | |
139 | .function_code = {'P','K'}, | |
140 | }; | |
141 | static struct function_and_rules_block static_pke_fnr = { | |
142 | .function_code = {'P','K'}, | |
143 | .ulen = 10, | |
144 | .only_rule = {'M','R','P',' ',' ',' ',' ',' '} | |
145 | }; | |
146 | static struct function_and_rules_block static_pke_fnr_MCL2 = { | |
147 | .function_code = {'P','K'}, | |
148 | .ulen = 10, | |
149 | .only_rule = {'Z','E','R','O','-','P','A','D'} | |
150 | }; | |
151 | struct { | |
152 | struct type6_hdr hdr; | |
153 | struct CPRBX cprbx; | |
154 | struct function_and_rules_block fr; | |
155 | unsigned short length; | |
156 | char text[0]; | |
157 | } __attribute__((packed)) *msg = ap_msg->message; | |
158 | int size; | |
159 | ||
160 | /* VUD.ciphertext */ | |
161 | msg->length = mex->inputdatalength + 2; | |
162 | if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) | |
163 | return -EFAULT; | |
164 | ||
165 | /* Set up key which is located after the variable length text. */ | |
166 | size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1); | |
167 | if (size < 0) | |
168 | return size; | |
169 | size += sizeof(*msg) + mex->inputdatalength; | |
170 | ||
171 | /* message header, cprbx and f&r */ | |
172 | msg->hdr = static_type6_hdrX; | |
173 | msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); | |
174 | msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); | |
175 | ||
176 | msg->cprbx = static_cprbx; | |
177 | msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); | |
178 | msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1; | |
179 | ||
180 | msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? | |
181 | static_pke_fnr_MCL2 : static_pke_fnr; | |
182 | ||
183 | msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx); | |
184 | ||
185 | ap_msg->length = size; | |
186 | return 0; | |
187 | } | |
188 | ||
189 | /** | |
190 | * Convert a ICACRT message to a type6 CRT message. | |
191 | * | |
192 | * @zdev: crypto device pointer | |
193 | * @ap_msg: pointer to AP message | |
194 | * @crt: pointer to user input data | |
195 | * | |
196 | * Returns 0 on success or -EFAULT. | |
197 | */ | |
198 | static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev, | |
199 | struct ap_message *ap_msg, | |
200 | struct ica_rsa_modexpo_crt *crt) | |
201 | { | |
202 | static struct type6_hdr static_type6_hdrX = { | |
203 | .type = 0x06, | |
204 | .offset1 = 0x00000058, | |
205 | .agent_id = {'C','A',}, | |
206 | .function_code = {'P','D'}, | |
207 | }; | |
208 | static struct function_and_rules_block static_pkd_fnr = { | |
209 | .function_code = {'P','D'}, | |
210 | .ulen = 10, | |
211 | .only_rule = {'Z','E','R','O','-','P','A','D'} | |
212 | }; | |
213 | ||
214 | static struct function_and_rules_block static_pkd_fnr_MCL2 = { | |
215 | .function_code = {'P','D'}, | |
216 | .ulen = 10, | |
217 | .only_rule = {'P','K','C','S','-','1','.','2'} | |
218 | }; | |
219 | struct { | |
220 | struct type6_hdr hdr; | |
221 | struct CPRBX cprbx; | |
222 | struct function_and_rules_block fr; | |
223 | unsigned short length; | |
224 | char text[0]; | |
225 | } __attribute__((packed)) *msg = ap_msg->message; | |
226 | int size; | |
227 | ||
228 | /* VUD.ciphertext */ | |
229 | msg->length = crt->inputdatalength + 2; | |
230 | if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) | |
231 | return -EFAULT; | |
232 | ||
233 | /* Set up key which is located after the variable length text. */ | |
234 | size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1); | |
235 | if (size < 0) | |
236 | return size; | |
237 | size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ | |
238 | ||
239 | /* message header, cprbx and f&r */ | |
240 | msg->hdr = static_type6_hdrX; | |
241 | msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); | |
242 | msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); | |
243 | ||
244 | msg->cprbx = static_cprbx; | |
245 | msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); | |
246 | msg->cprbx.req_parml = msg->cprbx.rpl_msgbl = | |
247 | size - sizeof(msg->hdr) - sizeof(msg->cprbx); | |
248 | ||
249 | msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? | |
250 | static_pkd_fnr_MCL2 : static_pkd_fnr; | |
251 | ||
252 | ap_msg->length = size; | |
253 | return 0; | |
254 | } | |
255 | ||
5432114b RW |
256 | /** |
257 | * Convert a XCRB message to a type6 CPRB message. | |
258 | * | |
259 | * @zdev: crypto device pointer | |
260 | * @ap_msg: pointer to AP message | |
261 | * @xcRB: pointer to user input data | |
262 | * | |
263 | * Returns 0 on success or -EFAULT. | |
264 | */ | |
265 | struct type86_fmt2_msg { | |
266 | struct type86_hdr hdr; | |
267 | struct type86_fmt2_ext fmt2; | |
268 | } __attribute__((packed)); | |
269 | ||
270 | static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev, | |
271 | struct ap_message *ap_msg, | |
272 | struct ica_xcRB *xcRB) | |
273 | { | |
274 | static struct type6_hdr static_type6_hdrX = { | |
275 | .type = 0x06, | |
276 | .offset1 = 0x00000058, | |
277 | }; | |
278 | struct { | |
279 | struct type6_hdr hdr; | |
16db63fd | 280 | struct CPRBX cprbx; |
5432114b RW |
281 | } __attribute__((packed)) *msg = ap_msg->message; |
282 | ||
283 | int rcblen = CEIL4(xcRB->request_control_blk_length); | |
284 | int replylen; | |
285 | char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen; | |
286 | char *function_code; | |
287 | ||
288 | /* length checks */ | |
289 | ap_msg->length = sizeof(struct type6_hdr) + | |
290 | CEIL4(xcRB->request_control_blk_length) + | |
291 | xcRB->request_data_length; | |
292 | if (ap_msg->length > PCIXCC_MAX_XCRB_MESSAGE_SIZE) { | |
293 | PRINTK("Combined message is too large (%ld/%d/%d).\n", | |
294 | sizeof(struct type6_hdr), | |
295 | xcRB->request_control_blk_length, | |
296 | xcRB->request_data_length); | |
297 | return -EFAULT; | |
298 | } | |
299 | if (CEIL4(xcRB->reply_control_blk_length) > | |
300 | PCIXCC_MAX_XCRB_REPLY_SIZE) { | |
301 | PDEBUG("Reply CPRB length is too large (%d).\n", | |
302 | xcRB->request_control_blk_length); | |
303 | return -EFAULT; | |
304 | } | |
305 | if (CEIL4(xcRB->reply_data_length) > PCIXCC_MAX_XCRB_DATA_SIZE) { | |
306 | PDEBUG("Reply data block length is too large (%d).\n", | |
307 | xcRB->reply_data_length); | |
308 | return -EFAULT; | |
309 | } | |
310 | replylen = CEIL4(xcRB->reply_control_blk_length) + | |
311 | CEIL4(xcRB->reply_data_length) + | |
312 | sizeof(struct type86_fmt2_msg); | |
313 | if (replylen > PCIXCC_MAX_XCRB_RESPONSE_SIZE) { | |
314 | PDEBUG("Reply CPRB + data block > PCIXCC_MAX_XCRB_RESPONSE_SIZE" | |
315 | " (%d/%d/%d).\n", | |
316 | sizeof(struct type86_fmt2_msg), | |
317 | xcRB->reply_control_blk_length, | |
318 | xcRB->reply_data_length); | |
319 | xcRB->reply_control_blk_length = PCIXCC_MAX_XCRB_RESPONSE_SIZE - | |
320 | (sizeof(struct type86_fmt2_msg) + | |
321 | CEIL4(xcRB->reply_data_length)); | |
322 | PDEBUG("Capping Reply CPRB length at %d\n", | |
323 | xcRB->reply_control_blk_length); | |
324 | } | |
325 | ||
326 | /* prepare type6 header */ | |
327 | msg->hdr = static_type6_hdrX; | |
328 | memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID)); | |
329 | msg->hdr.ToCardLen1 = xcRB->request_control_blk_length; | |
330 | if (xcRB->request_data_length) { | |
331 | msg->hdr.offset2 = msg->hdr.offset1 + rcblen; | |
332 | msg->hdr.ToCardLen2 = xcRB->request_data_length; | |
333 | } | |
334 | msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length; | |
335 | msg->hdr.FromCardLen2 = xcRB->reply_data_length; | |
336 | ||
337 | /* prepare CPRB */ | |
338 | if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr, | |
339 | xcRB->request_control_blk_length)) | |
340 | return -EFAULT; | |
341 | if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) > | |
342 | xcRB->request_control_blk_length) { | |
343 | PDEBUG("cprb_len too large (%d/%d)\n", msg->cprbx.cprb_len, | |
344 | xcRB->request_control_blk_length); | |
345 | return -EFAULT; | |
346 | } | |
347 | function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len; | |
348 | memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code)); | |
349 | ||
350 | /* copy data block */ | |
351 | if (xcRB->request_data_length && | |
352 | copy_from_user(req_data, xcRB->request_data_address, | |
353 | xcRB->request_data_length)) | |
354 | return -EFAULT; | |
355 | return 0; | |
356 | } | |
357 | ||
6684af1a MS |
358 | /** |
359 | * Copy results from a type 86 ICA reply message back to user space. | |
360 | * | |
361 | * @zdev: crypto device pointer | |
362 | * @reply: reply AP message. | |
363 | * @data: pointer to user output data | |
364 | * @length: size of user output data | |
365 | * | |
366 | * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. | |
367 | */ | |
368 | struct type86x_reply { | |
369 | struct type86_hdr hdr; | |
370 | struct type86_fmt2_ext fmt2; | |
371 | struct CPRBX cprbx; | |
372 | unsigned char pad[4]; /* 4 byte function code/rules block ? */ | |
373 | unsigned short length; | |
374 | char text[0]; | |
375 | } __attribute__((packed)); | |
376 | ||
377 | static int convert_type86_ica(struct zcrypt_device *zdev, | |
378 | struct ap_message *reply, | |
379 | char __user *outputdata, | |
380 | unsigned int outputdatalength) | |
381 | { | |
382 | static unsigned char static_pad[] = { | |
383 | 0x00,0x02, | |
384 | 0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD, | |
385 | 0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, | |
386 | 0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B, | |
387 | 0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, | |
388 | 0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5, | |
389 | 0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, | |
390 | 0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB, | |
391 | 0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, | |
392 | 0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9, | |
393 | 0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, | |
394 | 0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9, | |
395 | 0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, | |
396 | 0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD, | |
397 | 0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, | |
398 | 0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD, | |
399 | 0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, | |
400 | 0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B, | |
401 | 0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, | |
402 | 0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B, | |
403 | 0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, | |
404 | 0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7, | |
405 | 0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, | |
406 | 0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3, | |
407 | 0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, | |
408 | 0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55, | |
409 | 0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, | |
410 | 0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F, | |
411 | 0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, | |
412 | 0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5, | |
413 | 0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, | |
414 | 0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41, | |
415 | 0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 | |
416 | }; | |
417 | struct type86x_reply *msg = reply->message; | |
418 | unsigned short service_rc, service_rs; | |
419 | unsigned int reply_len, pad_len; | |
420 | char *data; | |
421 | ||
422 | service_rc = msg->cprbx.ccp_rtcode; | |
423 | if (unlikely(service_rc != 0)) { | |
424 | service_rs = msg->cprbx.ccp_rscode; | |
425 | if (service_rc == 8 && service_rs == 66) { | |
426 | PDEBUG("Bad block format on PCIXCC/CEX2C\n"); | |
427 | return -EINVAL; | |
428 | } | |
429 | if (service_rc == 8 && service_rs == 65) { | |
430 | PDEBUG("Probably an even modulus on PCIXCC/CEX2C\n"); | |
431 | return -EINVAL; | |
432 | } | |
433 | if (service_rc == 8 && service_rs == 770) { | |
434 | PDEBUG("Invalid key length on PCIXCC/CEX2C\n"); | |
2af48080 | 435 | return -EINVAL; |
6684af1a MS |
436 | } |
437 | if (service_rc == 8 && service_rs == 783) { | |
438 | PDEBUG("Extended bitlengths not enabled on PCIXCC/CEX2C\n"); | |
439 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; | |
440 | return -EAGAIN; | |
441 | } | |
2af48080 RW |
442 | if (service_rc == 12 && service_rs == 769) { |
443 | PDEBUG("Invalid key on PCIXCC/CEX2C\n"); | |
444 | return -EINVAL; | |
445 | } | |
6684af1a MS |
446 | PRINTK("Unknown service rc/rs (PCIXCC/CEX2C): %d/%d\n", |
447 | service_rc, service_rs); | |
448 | zdev->online = 0; | |
449 | return -EAGAIN; /* repeat the request on a different device. */ | |
450 | } | |
451 | data = msg->text; | |
452 | reply_len = msg->length - 2; | |
453 | if (reply_len > outputdatalength) | |
454 | return -EINVAL; | |
455 | /** | |
456 | * For all encipher requests, the length of the ciphertext (reply_len) | |
457 | * will always equal the modulus length. For MEX decipher requests | |
458 | * the output needs to get padded. Minimum pad size is 10. | |
459 | * | |
460 | * Currently, the cases where padding will be added is for: | |
461 | * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support | |
462 | * ZERO-PAD and CRT is only supported for PKD requests) | |
463 | * - PCICC, always | |
464 | */ | |
465 | pad_len = outputdatalength - reply_len; | |
466 | if (pad_len > 0) { | |
467 | if (pad_len < 10) | |
468 | return -EINVAL; | |
469 | /* 'restore' padding left in the PCICC/PCIXCC card. */ | |
470 | if (copy_to_user(outputdata, static_pad, pad_len - 1)) | |
471 | return -EFAULT; | |
472 | if (put_user(0, outputdata + pad_len - 1)) | |
473 | return -EFAULT; | |
474 | } | |
475 | /* Copy the crypto response to user space. */ | |
476 | if (copy_to_user(outputdata + pad_len, data, reply_len)) | |
477 | return -EFAULT; | |
478 | return 0; | |
479 | } | |
480 | ||
5432114b RW |
481 | /** |
482 | * Copy results from a type 86 XCRB reply message back to user space. | |
483 | * | |
484 | * @zdev: crypto device pointer | |
485 | * @reply: reply AP message. | |
486 | * @xcRB: pointer to XCRB | |
487 | * | |
488 | * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. | |
489 | */ | |
490 | static int convert_type86_xcrb(struct zcrypt_device *zdev, | |
491 | struct ap_message *reply, | |
492 | struct ica_xcRB *xcRB) | |
493 | { | |
494 | struct type86_fmt2_msg *msg = reply->message; | |
495 | char *data = reply->message; | |
496 | ||
497 | /* Copy CPRB to user */ | |
498 | if (copy_to_user(xcRB->reply_control_blk_addr, | |
499 | data + msg->fmt2.offset1, msg->fmt2.count1)) | |
500 | return -EFAULT; | |
501 | xcRB->reply_control_blk_length = msg->fmt2.count1; | |
502 | ||
503 | /* Copy data buffer to user */ | |
504 | if (msg->fmt2.count2) | |
505 | if (copy_to_user(xcRB->reply_data_addr, | |
506 | data + msg->fmt2.offset2, msg->fmt2.count2)) | |
507 | return -EFAULT; | |
508 | xcRB->reply_data_length = msg->fmt2.count2; | |
509 | return 0; | |
510 | } | |
511 | ||
6684af1a MS |
512 | static int convert_response_ica(struct zcrypt_device *zdev, |
513 | struct ap_message *reply, | |
514 | char __user *outputdata, | |
515 | unsigned int outputdatalength) | |
516 | { | |
517 | struct type86x_reply *msg = reply->message; | |
518 | ||
519 | /* Response type byte is the second byte in the response. */ | |
520 | switch (((unsigned char *) reply->message)[1]) { | |
521 | case TYPE82_RSP_CODE: | |
522 | case TYPE88_RSP_CODE: | |
523 | return convert_error(zdev, reply); | |
524 | case TYPE86_RSP_CODE: | |
525 | if (msg->hdr.reply_code) | |
526 | return convert_error(zdev, reply); | |
527 | if (msg->cprbx.cprb_ver_id == 0x02) | |
528 | return convert_type86_ica(zdev, reply, | |
529 | outputdata, outputdatalength); | |
530 | /* no break, incorrect cprb version is an unknown response */ | |
531 | default: /* Unknown response type, this should NEVER EVER happen */ | |
532 | PRINTK("Unrecognized Message Header: %08x%08x\n", | |
533 | *(unsigned int *) reply->message, | |
534 | *(unsigned int *) (reply->message+4)); | |
535 | zdev->online = 0; | |
536 | return -EAGAIN; /* repeat the request on a different device. */ | |
537 | } | |
538 | } | |
539 | ||
5432114b RW |
540 | static int convert_response_xcrb(struct zcrypt_device *zdev, |
541 | struct ap_message *reply, | |
542 | struct ica_xcRB *xcRB) | |
543 | { | |
544 | struct type86x_reply *msg = reply->message; | |
545 | ||
546 | /* Response type byte is the second byte in the response. */ | |
547 | switch (((unsigned char *) reply->message)[1]) { | |
548 | case TYPE82_RSP_CODE: | |
549 | case TYPE88_RSP_CODE: | |
550 | xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ | |
551 | return convert_error(zdev, reply); | |
552 | case TYPE86_RSP_CODE: | |
553 | if (msg->hdr.reply_code) { | |
554 | memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32)); | |
555 | return convert_error(zdev, reply); | |
556 | } | |
557 | if (msg->cprbx.cprb_ver_id == 0x02) | |
558 | return convert_type86_xcrb(zdev, reply, xcRB); | |
559 | /* no break, incorrect cprb version is an unknown response */ | |
560 | default: /* Unknown response type, this should NEVER EVER happen */ | |
561 | PRINTK("Unrecognized Message Header: %08x%08x\n", | |
562 | *(unsigned int *) reply->message, | |
563 | *(unsigned int *) (reply->message+4)); | |
564 | xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ | |
565 | zdev->online = 0; | |
566 | return -EAGAIN; /* repeat the request on a different device. */ | |
567 | } | |
568 | } | |
569 | ||
6684af1a MS |
570 | /** |
571 | * This function is called from the AP bus code after a crypto request | |
572 | * "msg" has finished with the reply message "reply". | |
573 | * It is called from tasklet context. | |
574 | * @ap_dev: pointer to the AP device | |
575 | * @msg: pointer to the AP message | |
576 | * @reply: pointer to the AP reply message | |
577 | */ | |
578 | static void zcrypt_pcixcc_receive(struct ap_device *ap_dev, | |
579 | struct ap_message *msg, | |
580 | struct ap_message *reply) | |
581 | { | |
582 | static struct error_hdr error_reply = { | |
583 | .type = TYPE82_RSP_CODE, | |
584 | .reply_code = REP82_ERROR_MACHINE_FAILURE, | |
585 | }; | |
5432114b RW |
586 | struct response_type *resp_type = |
587 | (struct response_type *) msg->private; | |
6684af1a MS |
588 | struct type86x_reply *t86r = reply->message; |
589 | int length; | |
590 | ||
591 | /* Copy the reply message to the request message buffer. */ | |
592 | if (IS_ERR(reply)) | |
593 | memcpy(msg->message, &error_reply, sizeof(error_reply)); | |
594 | else if (t86r->hdr.type == TYPE86_RSP_CODE && | |
595 | t86r->cprbx.cprb_ver_id == 0x02) { | |
5432114b RW |
596 | switch (resp_type->type) { |
597 | case PCIXCC_RESPONSE_TYPE_ICA: | |
598 | length = sizeof(struct type86x_reply) | |
599 | + t86r->length - 2; | |
600 | length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); | |
601 | memcpy(msg->message, reply->message, length); | |
602 | break; | |
603 | case PCIXCC_RESPONSE_TYPE_XCRB: | |
604 | length = t86r->fmt2.offset2 + t86r->fmt2.count2; | |
605 | length = min(PCIXCC_MAX_XCRB_RESPONSE_SIZE, length); | |
606 | memcpy(msg->message, reply->message, length); | |
607 | break; | |
608 | default: | |
609 | PRINTK("Invalid internal response type: %i\n", | |
610 | resp_type->type); | |
611 | memcpy(msg->message, &error_reply, | |
612 | sizeof error_reply); | |
613 | } | |
6684af1a MS |
614 | } else |
615 | memcpy(msg->message, reply->message, sizeof error_reply); | |
5432114b | 616 | complete(&(resp_type->work)); |
6684af1a MS |
617 | } |
618 | ||
619 | static atomic_t zcrypt_step = ATOMIC_INIT(0); | |
620 | ||
621 | /** | |
622 | * The request distributor calls this function if it picked the PCIXCC/CEX2C | |
623 | * device to handle a modexpo request. | |
624 | * @zdev: pointer to zcrypt_device structure that identifies the | |
625 | * PCIXCC/CEX2C device to the request distributor | |
626 | * @mex: pointer to the modexpo request buffer | |
627 | */ | |
628 | static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev, | |
629 | struct ica_rsa_modexpo *mex) | |
630 | { | |
631 | struct ap_message ap_msg; | |
5432114b RW |
632 | struct response_type resp_type = { |
633 | .type = PCIXCC_RESPONSE_TYPE_ICA, | |
634 | }; | |
6684af1a MS |
635 | int rc; |
636 | ||
637 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | |
638 | if (!ap_msg.message) | |
639 | return -ENOMEM; | |
640 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | |
641 | atomic_inc_return(&zcrypt_step); | |
5432114b | 642 | ap_msg.private = &resp_type; |
6684af1a MS |
643 | rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex); |
644 | if (rc) | |
645 | goto out_free; | |
5432114b | 646 | init_completion(&resp_type.work); |
6684af1a | 647 | ap_queue_message(zdev->ap_dev, &ap_msg); |
af512ed0 RW |
648 | rc = wait_for_completion_interruptible(&resp_type.work); |
649 | if (rc == 0) | |
6684af1a MS |
650 | rc = convert_response_ica(zdev, &ap_msg, mex->outputdata, |
651 | mex->outputdatalength); | |
af512ed0 RW |
652 | else |
653 | /* Signal pending. */ | |
6684af1a | 654 | ap_cancel_message(zdev->ap_dev, &ap_msg); |
6684af1a MS |
655 | out_free: |
656 | free_page((unsigned long) ap_msg.message); | |
657 | return rc; | |
658 | } | |
659 | ||
660 | /** | |
661 | * The request distributor calls this function if it picked the PCIXCC/CEX2C | |
662 | * device to handle a modexpo_crt request. | |
663 | * @zdev: pointer to zcrypt_device structure that identifies the | |
664 | * PCIXCC/CEX2C device to the request distributor | |
665 | * @crt: pointer to the modexpoc_crt request buffer | |
666 | */ | |
667 | static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev, | |
668 | struct ica_rsa_modexpo_crt *crt) | |
669 | { | |
670 | struct ap_message ap_msg; | |
5432114b RW |
671 | struct response_type resp_type = { |
672 | .type = PCIXCC_RESPONSE_TYPE_ICA, | |
673 | }; | |
6684af1a MS |
674 | int rc; |
675 | ||
676 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | |
677 | if (!ap_msg.message) | |
678 | return -ENOMEM; | |
679 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | |
680 | atomic_inc_return(&zcrypt_step); | |
5432114b | 681 | ap_msg.private = &resp_type; |
6684af1a MS |
682 | rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt); |
683 | if (rc) | |
684 | goto out_free; | |
5432114b | 685 | init_completion(&resp_type.work); |
6684af1a | 686 | ap_queue_message(zdev->ap_dev, &ap_msg); |
af512ed0 RW |
687 | rc = wait_for_completion_interruptible(&resp_type.work); |
688 | if (rc == 0) | |
6684af1a MS |
689 | rc = convert_response_ica(zdev, &ap_msg, crt->outputdata, |
690 | crt->outputdatalength); | |
af512ed0 RW |
691 | else |
692 | /* Signal pending. */ | |
6684af1a | 693 | ap_cancel_message(zdev->ap_dev, &ap_msg); |
6684af1a MS |
694 | out_free: |
695 | free_page((unsigned long) ap_msg.message); | |
696 | return rc; | |
697 | } | |
698 | ||
5432114b RW |
699 | /** |
700 | * The request distributor calls this function if it picked the PCIXCC/CEX2C | |
701 | * device to handle a send_cprb request. | |
702 | * @zdev: pointer to zcrypt_device structure that identifies the | |
703 | * PCIXCC/CEX2C device to the request distributor | |
704 | * @xcRB: pointer to the send_cprb request buffer | |
705 | */ | |
2b67fc46 HC |
706 | static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev, |
707 | struct ica_xcRB *xcRB) | |
5432114b RW |
708 | { |
709 | struct ap_message ap_msg; | |
710 | struct response_type resp_type = { | |
711 | .type = PCIXCC_RESPONSE_TYPE_XCRB, | |
712 | }; | |
713 | int rc; | |
714 | ||
5cbded58 | 715 | ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL); |
5432114b RW |
716 | if (!ap_msg.message) |
717 | return -ENOMEM; | |
718 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | |
719 | atomic_inc_return(&zcrypt_step); | |
720 | ap_msg.private = &resp_type; | |
721 | rc = XCRB_msg_to_type6CPRB_msgX(zdev, &ap_msg, xcRB); | |
722 | if (rc) | |
723 | goto out_free; | |
724 | init_completion(&resp_type.work); | |
725 | ap_queue_message(zdev->ap_dev, &ap_msg); | |
af512ed0 RW |
726 | rc = wait_for_completion_interruptible(&resp_type.work); |
727 | if (rc == 0) | |
5432114b | 728 | rc = convert_response_xcrb(zdev, &ap_msg, xcRB); |
af512ed0 RW |
729 | else |
730 | /* Signal pending. */ | |
5432114b | 731 | ap_cancel_message(zdev->ap_dev, &ap_msg); |
5432114b RW |
732 | out_free: |
733 | memset(ap_msg.message, 0x0, ap_msg.length); | |
734 | kfree(ap_msg.message); | |
735 | return rc; | |
736 | } | |
737 | ||
6684af1a MS |
738 | /** |
739 | * The crypto operations for a PCIXCC/CEX2C card. | |
740 | */ | |
741 | static struct zcrypt_ops zcrypt_pcixcc_ops = { | |
742 | .rsa_modexpo = zcrypt_pcixcc_modexpo, | |
743 | .rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt, | |
5432114b | 744 | .send_cprb = zcrypt_pcixcc_send_cprb, |
6684af1a MS |
745 | }; |
746 | ||
747 | /** | |
748 | * Micro-code detection function. Its sends a message to a pcixcc card | |
749 | * to find out the microcode level. | |
750 | * @ap_dev: pointer to the AP device. | |
751 | */ | |
752 | static int zcrypt_pcixcc_mcl(struct ap_device *ap_dev) | |
753 | { | |
754 | static unsigned char msg[] = { | |
755 | 0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00, | |
756 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
757 | 0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00, | |
758 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
759 | 0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00, | |
760 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
761 | 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00, | |
762 | 0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00, | |
763 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
764 | 0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00, | |
765 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
766 | 0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32, | |
767 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8, | |
768 | 0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24, | |
769 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
770 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
771 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
772 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
773 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
774 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
775 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
776 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
777 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
778 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
779 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
780 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
781 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
782 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
783 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
784 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
785 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
786 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
787 | 0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00, | |
788 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
789 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
790 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
791 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
792 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | |
793 | 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A, | |
794 | 0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20, | |
795 | 0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05, | |
796 | 0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, | |
797 | 0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55, | |
798 | 0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD, | |
799 | 0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA, | |
800 | 0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22, | |
801 | 0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB, | |
802 | 0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54, | |
803 | 0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00, | |
804 | 0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00, | |
805 | 0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40, | |
806 | 0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C, | |
807 | 0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF, | |
808 | 0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9, | |
809 | 0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63, | |
810 | 0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5, | |
811 | 0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A, | |
812 | 0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01, | |
813 | 0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28, | |
814 | 0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91, | |
815 | 0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5, | |
816 | 0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C, | |
817 | 0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98, | |
818 | 0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96, | |
819 | 0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19, | |
820 | 0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47, | |
821 | 0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36, | |
822 | 0xF1,0x3D,0x93,0x53 | |
823 | }; | |
824 | unsigned long long psmid; | |
825 | struct CPRBX *cprbx; | |
826 | char *reply; | |
827 | int rc, i; | |
828 | ||
829 | reply = (void *) get_zeroed_page(GFP_KERNEL); | |
830 | if (!reply) | |
831 | return -ENOMEM; | |
832 | ||
833 | rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, msg, sizeof(msg)); | |
834 | if (rc) | |
835 | goto out_free; | |
836 | ||
837 | /* Wait for the test message to complete. */ | |
838 | for (i = 0; i < 6; i++) { | |
839 | mdelay(300); | |
840 | rc = ap_recv(ap_dev->qid, &psmid, reply, 4096); | |
841 | if (rc == 0 && psmid == 0x0102030405060708ULL) | |
842 | break; | |
843 | } | |
844 | ||
845 | if (i >= 6) { | |
846 | /* Got no answer. */ | |
847 | rc = -ENODEV; | |
848 | goto out_free; | |
849 | } | |
850 | ||
851 | cprbx = (struct CPRBX *) (reply + 48); | |
852 | if (cprbx->ccp_rtcode == 8 && cprbx->ccp_rscode == 33) | |
853 | rc = ZCRYPT_PCIXCC_MCL2; | |
854 | else | |
855 | rc = ZCRYPT_PCIXCC_MCL3; | |
856 | out_free: | |
857 | free_page((unsigned long) reply); | |
858 | return rc; | |
859 | } | |
860 | ||
861 | /** | |
862 | * Probe function for PCIXCC/CEX2C cards. It always accepts the AP device | |
863 | * since the bus_match already checked the hardware type. The PCIXCC | |
864 | * cards come in two flavours: micro code level 2 and micro code level 3. | |
865 | * This is checked by sending a test message to the device. | |
866 | * @ap_dev: pointer to the AP device. | |
867 | */ | |
868 | static int zcrypt_pcixcc_probe(struct ap_device *ap_dev) | |
869 | { | |
870 | struct zcrypt_device *zdev; | |
871 | int rc; | |
872 | ||
873 | zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE); | |
874 | if (!zdev) | |
875 | return -ENOMEM; | |
876 | zdev->ap_dev = ap_dev; | |
877 | zdev->ops = &zcrypt_pcixcc_ops; | |
878 | zdev->online = 1; | |
879 | if (ap_dev->device_type == AP_DEVICE_TYPE_PCIXCC) { | |
880 | rc = zcrypt_pcixcc_mcl(ap_dev); | |
881 | if (rc < 0) { | |
882 | zcrypt_device_free(zdev); | |
883 | return rc; | |
884 | } | |
885 | zdev->user_space_type = rc; | |
886 | if (rc == ZCRYPT_PCIXCC_MCL2) { | |
887 | zdev->type_string = "PCIXCC_MCL2"; | |
888 | zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING; | |
889 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; | |
890 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | |
891 | } else { | |
892 | zdev->type_string = "PCIXCC_MCL3"; | |
893 | zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING; | |
894 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; | |
895 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | |
896 | } | |
897 | } else { | |
898 | zdev->user_space_type = ZCRYPT_CEX2C; | |
899 | zdev->type_string = "CEX2C"; | |
900 | zdev->speed_rating = CEX2C_SPEED_RATING; | |
901 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; | |
902 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | |
903 | } | |
904 | ap_dev->reply = &zdev->reply; | |
905 | ap_dev->private = zdev; | |
906 | rc = zcrypt_device_register(zdev); | |
907 | if (rc) | |
908 | goto out_free; | |
909 | return 0; | |
910 | ||
911 | out_free: | |
912 | ap_dev->private = NULL; | |
913 | zcrypt_device_free(zdev); | |
914 | return rc; | |
915 | } | |
916 | ||
917 | /** | |
918 | * This is called to remove the extended PCIXCC/CEX2C driver information | |
919 | * if an AP device is removed. | |
920 | */ | |
921 | static void zcrypt_pcixcc_remove(struct ap_device *ap_dev) | |
922 | { | |
923 | struct zcrypt_device *zdev = ap_dev->private; | |
924 | ||
925 | zcrypt_device_unregister(zdev); | |
926 | } | |
927 | ||
928 | int __init zcrypt_pcixcc_init(void) | |
929 | { | |
930 | return ap_driver_register(&zcrypt_pcixcc_driver, THIS_MODULE, "pcixcc"); | |
931 | } | |
932 | ||
933 | void zcrypt_pcixcc_exit(void) | |
934 | { | |
935 | ap_driver_unregister(&zcrypt_pcixcc_driver); | |
936 | } | |
937 | ||
938 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | |
939 | module_init(zcrypt_pcixcc_init); | |
940 | module_exit(zcrypt_pcixcc_exit); | |
941 | #endif |