1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright IBM Corp. 2012, 2022 4 * Author(s): Holger Dengler <hd@linux.vnet.ibm.com> 5 */ 6 7 #include <linux/module.h> 8 #include <linux/slab.h> 9 #include <linux/init.h> 10 #include <linux/err.h> 11 #include <linux/atomic.h> 12 #include <linux/uaccess.h> 13 #include <linux/mod_devicetable.h> 14 15 #include "ap_bus.h" 16 #include "zcrypt_api.h" 17 #include "zcrypt_msgtype6.h" 18 #include "zcrypt_msgtype50.h" 19 #include "zcrypt_error.h" 20 #include "zcrypt_cex4.h" 21 #include "zcrypt_ccamisc.h" 22 #include "zcrypt_ep11misc.h" 23 24 #define CEX4A_MIN_MOD_SIZE 1 /* 8 bits */ 25 #define CEX4A_MAX_MOD_SIZE_2K 256 /* 2048 bits */ 26 #define CEX4A_MAX_MOD_SIZE_4K 512 /* 4096 bits */ 27 28 #define CEX4C_MIN_MOD_SIZE 16 /* 256 bits */ 29 #define CEX4C_MAX_MOD_SIZE 512 /* 4096 bits */ 30 31 /* Waiting time for requests to be processed. 32 * Currently there are some types of request which are not deterministic. 33 * But the maximum time limit managed by the stomper code is set to 60sec. 34 * Hence we have to wait at least that time period. 35 */ 36 #define CEX4_CLEANUP_TIME (900 * HZ) 37 38 MODULE_AUTHOR("IBM Corporation"); 39 MODULE_DESCRIPTION("CEX[45678] Cryptographic Card device driver, " \ 40 "Copyright IBM Corp. 2022"); 41 MODULE_LICENSE("GPL"); 42 43 static struct ap_device_id zcrypt_cex4_card_ids[] = { 44 { .dev_type = AP_DEVICE_TYPE_CEX4, 45 .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, 46 { .dev_type = AP_DEVICE_TYPE_CEX5, 47 .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, 48 { .dev_type = AP_DEVICE_TYPE_CEX6, 49 .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, 50 { .dev_type = AP_DEVICE_TYPE_CEX7, 51 .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, 52 { .dev_type = AP_DEVICE_TYPE_CEX8, 53 .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, 54 { /* end of list */ }, 55 }; 56 57 MODULE_DEVICE_TABLE(ap, zcrypt_cex4_card_ids); 58 59 static struct ap_device_id zcrypt_cex4_queue_ids[] = { 60 { .dev_type = AP_DEVICE_TYPE_CEX4, 61 .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, 62 { .dev_type = AP_DEVICE_TYPE_CEX5, 63 .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, 64 { .dev_type = AP_DEVICE_TYPE_CEX6, 65 .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, 66 { .dev_type = AP_DEVICE_TYPE_CEX7, 67 .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, 68 { .dev_type = AP_DEVICE_TYPE_CEX8, 69 .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, 70 { /* end of list */ }, 71 }; 72 73 MODULE_DEVICE_TABLE(ap, zcrypt_cex4_queue_ids); 74 75 /* 76 * CCA card additional device attributes 77 */ 78 static ssize_t cca_serialnr_show(struct device *dev, 79 struct device_attribute *attr, 80 char *buf) 81 { 82 struct zcrypt_card *zc = dev_get_drvdata(dev); 83 struct cca_info ci; 84 struct ap_card *ac = to_ap_card(dev); 85 86 memset(&ci, 0, sizeof(ci)); 87 88 if (ap_domain_index >= 0) 89 cca_get_info(ac->id, ap_domain_index, &ci, zc->online); 90 91 return sysfs_emit(buf, "%s\n", ci.serial); 92 } 93 94 static struct device_attribute dev_attr_cca_serialnr = 95 __ATTR(serialnr, 0444, cca_serialnr_show, NULL); 96 97 static struct attribute *cca_card_attrs[] = { 98 &dev_attr_cca_serialnr.attr, 99 NULL, 100 }; 101 102 static const struct attribute_group cca_card_attr_grp = { 103 .attrs = cca_card_attrs, 104 }; 105 106 /* 107 * CCA queue additional device attributes 108 */ 109 static ssize_t cca_mkvps_show(struct device *dev, 110 struct device_attribute *attr, 111 char *buf) 112 { 113 struct zcrypt_queue *zq = dev_get_drvdata(dev); 114 int n = 0; 115 struct cca_info ci; 116 static const char * const cao_state[] = { "invalid", "valid" }; 117 static const char * const new_state[] = { "empty", "partial", "full" }; 118 119 memset(&ci, 0, sizeof(ci)); 120 121 cca_get_info(AP_QID_CARD(zq->queue->qid), 122 AP_QID_QUEUE(zq->queue->qid), 123 &ci, zq->online); 124 125 if (ci.new_aes_mk_state >= '1' && ci.new_aes_mk_state <= '3') 126 n += sysfs_emit_at(buf, n, "AES NEW: %s 0x%016llx\n", 127 new_state[ci.new_aes_mk_state - '1'], 128 ci.new_aes_mkvp); 129 else 130 n += sysfs_emit_at(buf, n, "AES NEW: - -\n"); 131 132 if (ci.cur_aes_mk_state >= '1' && ci.cur_aes_mk_state <= '2') 133 n += sysfs_emit_at(buf, n, "AES CUR: %s 0x%016llx\n", 134 cao_state[ci.cur_aes_mk_state - '1'], 135 ci.cur_aes_mkvp); 136 else 137 n += sysfs_emit_at(buf, n, "AES CUR: - -\n"); 138 139 if (ci.old_aes_mk_state >= '1' && ci.old_aes_mk_state <= '2') 140 n += sysfs_emit_at(buf, n, "AES OLD: %s 0x%016llx\n", 141 cao_state[ci.old_aes_mk_state - '1'], 142 ci.old_aes_mkvp); 143 else 144 n += sysfs_emit_at(buf, n, "AES OLD: - -\n"); 145 146 if (ci.new_apka_mk_state >= '1' && ci.new_apka_mk_state <= '3') 147 n += sysfs_emit_at(buf, n, "APKA NEW: %s 0x%016llx\n", 148 new_state[ci.new_apka_mk_state - '1'], 149 ci.new_apka_mkvp); 150 else 151 n += sysfs_emit_at(buf, n, "APKA NEW: - -\n"); 152 153 if (ci.cur_apka_mk_state >= '1' && ci.cur_apka_mk_state <= '2') 154 n += sysfs_emit_at(buf, n, "APKA CUR: %s 0x%016llx\n", 155 cao_state[ci.cur_apka_mk_state - '1'], 156 ci.cur_apka_mkvp); 157 else 158 n += sysfs_emit_at(buf, n, "APKA CUR: - -\n"); 159 160 if (ci.old_apka_mk_state >= '1' && ci.old_apka_mk_state <= '2') 161 n += sysfs_emit_at(buf, n, "APKA OLD: %s 0x%016llx\n", 162 cao_state[ci.old_apka_mk_state - '1'], 163 ci.old_apka_mkvp); 164 else 165 n += sysfs_emit_at(buf, n, "APKA OLD: - -\n"); 166 167 if (ci.new_asym_mk_state >= '1' && ci.new_asym_mk_state <= '3') 168 n += sysfs_emit_at(buf, n, "ASYM NEW: %s 0x%016llx%016llx\n", 169 new_state[ci.new_asym_mk_state - '1'], 170 *((u64 *)(ci.new_asym_mkvp)), 171 *((u64 *)(ci.new_asym_mkvp + sizeof(u64)))); 172 else 173 n += sysfs_emit_at(buf, n, "ASYM NEW: - -\n"); 174 175 if (ci.cur_asym_mk_state >= '1' && ci.cur_asym_mk_state <= '2') 176 n += sysfs_emit_at(buf, n, "ASYM CUR: %s 0x%016llx%016llx\n", 177 cao_state[ci.cur_asym_mk_state - '1'], 178 *((u64 *)(ci.cur_asym_mkvp)), 179 *((u64 *)(ci.cur_asym_mkvp + sizeof(u64)))); 180 else 181 n += sysfs_emit_at(buf, n, "ASYM CUR: - -\n"); 182 183 if (ci.old_asym_mk_state >= '1' && ci.old_asym_mk_state <= '2') 184 n += sysfs_emit_at(buf, n, "ASYM OLD: %s 0x%016llx%016llx\n", 185 cao_state[ci.old_asym_mk_state - '1'], 186 *((u64 *)(ci.old_asym_mkvp)), 187 *((u64 *)(ci.old_asym_mkvp + sizeof(u64)))); 188 else 189 n += sysfs_emit_at(buf, n, "ASYM OLD: - -\n"); 190 191 return n; 192 } 193 194 static struct device_attribute dev_attr_cca_mkvps = 195 __ATTR(mkvps, 0444, cca_mkvps_show, NULL); 196 197 static struct attribute *cca_queue_attrs[] = { 198 &dev_attr_cca_mkvps.attr, 199 NULL, 200 }; 201 202 static const struct attribute_group cca_queue_attr_grp = { 203 .attrs = cca_queue_attrs, 204 }; 205 206 /* 207 * EP11 card additional device attributes 208 */ 209 static ssize_t ep11_api_ordinalnr_show(struct device *dev, 210 struct device_attribute *attr, 211 char *buf) 212 { 213 struct zcrypt_card *zc = dev_get_drvdata(dev); 214 struct ep11_card_info ci; 215 struct ap_card *ac = to_ap_card(dev); 216 217 memset(&ci, 0, sizeof(ci)); 218 219 ep11_get_card_info(ac->id, &ci, zc->online); 220 221 if (ci.API_ord_nr > 0) 222 return sysfs_emit(buf, "%u\n", ci.API_ord_nr); 223 else 224 return sysfs_emit(buf, "\n"); 225 } 226 227 static struct device_attribute dev_attr_ep11_api_ordinalnr = 228 __ATTR(API_ordinalnr, 0444, ep11_api_ordinalnr_show, NULL); 229 230 static ssize_t ep11_fw_version_show(struct device *dev, 231 struct device_attribute *attr, 232 char *buf) 233 { 234 struct zcrypt_card *zc = dev_get_drvdata(dev); 235 struct ep11_card_info ci; 236 struct ap_card *ac = to_ap_card(dev); 237 238 memset(&ci, 0, sizeof(ci)); 239 240 ep11_get_card_info(ac->id, &ci, zc->online); 241 242 if (ci.FW_version > 0) 243 return sysfs_emit(buf, "%d.%d\n", 244 (int)(ci.FW_version >> 8), 245 (int)(ci.FW_version & 0xFF)); 246 else 247 return sysfs_emit(buf, "\n"); 248 } 249 250 static struct device_attribute dev_attr_ep11_fw_version = 251 __ATTR(FW_version, 0444, ep11_fw_version_show, NULL); 252 253 static ssize_t ep11_serialnr_show(struct device *dev, 254 struct device_attribute *attr, 255 char *buf) 256 { 257 struct zcrypt_card *zc = dev_get_drvdata(dev); 258 struct ep11_card_info ci; 259 struct ap_card *ac = to_ap_card(dev); 260 261 memset(&ci, 0, sizeof(ci)); 262 263 ep11_get_card_info(ac->id, &ci, zc->online); 264 265 if (ci.serial[0]) 266 return sysfs_emit(buf, "%16.16s\n", ci.serial); 267 else 268 return sysfs_emit(buf, "\n"); 269 } 270 271 static struct device_attribute dev_attr_ep11_serialnr = 272 __ATTR(serialnr, 0444, ep11_serialnr_show, NULL); 273 274 static const struct { 275 int mode_bit; 276 const char *mode_txt; 277 } ep11_op_modes[] = { 278 { 0, "FIPS2009" }, 279 { 1, "BSI2009" }, 280 { 2, "FIPS2011" }, 281 { 3, "BSI2011" }, 282 { 4, "SIGG-IMPORT" }, 283 { 5, "SIGG" }, 284 { 6, "BSICC2017" }, 285 { 7, "FIPS2021" }, 286 { 8, "FIPS2024" }, 287 { 0, NULL } 288 }; 289 290 static ssize_t ep11_card_op_modes_show(struct device *dev, 291 struct device_attribute *attr, 292 char *buf) 293 { 294 struct zcrypt_card *zc = dev_get_drvdata(dev); 295 int i, n = 0; 296 struct ep11_card_info ci; 297 struct ap_card *ac = to_ap_card(dev); 298 299 memset(&ci, 0, sizeof(ci)); 300 301 ep11_get_card_info(ac->id, &ci, zc->online); 302 303 for (i = 0; ep11_op_modes[i].mode_txt; i++) { 304 if (ci.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { 305 if (n > 0) 306 buf[n++] = ' '; 307 n += sysfs_emit_at(buf, n, "%s", 308 ep11_op_modes[i].mode_txt); 309 } 310 } 311 n += sysfs_emit_at(buf, n, "\n"); 312 313 return n; 314 } 315 316 static struct device_attribute dev_attr_ep11_card_op_modes = 317 __ATTR(op_modes, 0444, ep11_card_op_modes_show, NULL); 318 319 static struct attribute *ep11_card_attrs[] = { 320 &dev_attr_ep11_api_ordinalnr.attr, 321 &dev_attr_ep11_fw_version.attr, 322 &dev_attr_ep11_serialnr.attr, 323 &dev_attr_ep11_card_op_modes.attr, 324 NULL, 325 }; 326 327 static const struct attribute_group ep11_card_attr_grp = { 328 .attrs = ep11_card_attrs, 329 }; 330 331 /* 332 * EP11 queue additional device attributes 333 */ 334 335 static ssize_t ep11_mkvps_show(struct device *dev, 336 struct device_attribute *attr, 337 char *buf) 338 { 339 struct zcrypt_queue *zq = dev_get_drvdata(dev); 340 int n = 0; 341 struct ep11_domain_info di; 342 static const char * const cwk_state[] = { "invalid", "valid" }; 343 static const char * const nwk_state[] = { "empty", "uncommitted", 344 "committed" }; 345 346 memset(&di, 0, sizeof(di)); 347 348 if (zq->online) 349 ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), 350 AP_QID_QUEUE(zq->queue->qid), 351 &di); 352 353 if (di.cur_wk_state == '0') { 354 n = sysfs_emit(buf, "WK CUR: %s -\n", 355 cwk_state[di.cur_wk_state - '0']); 356 } else if (di.cur_wk_state == '1') { 357 n = sysfs_emit(buf, "WK CUR: %s 0x", 358 cwk_state[di.cur_wk_state - '0']); 359 bin2hex(buf + n, di.cur_wkvp, sizeof(di.cur_wkvp)); 360 n += 2 * sizeof(di.cur_wkvp); 361 n += sysfs_emit_at(buf, n, "\n"); 362 } else { 363 n = sysfs_emit(buf, "WK CUR: - -\n"); 364 } 365 366 if (di.new_wk_state == '0') { 367 n += sysfs_emit_at(buf, n, "WK NEW: %s -\n", 368 nwk_state[di.new_wk_state - '0']); 369 } else if (di.new_wk_state >= '1' && di.new_wk_state <= '2') { 370 n += sysfs_emit_at(buf, n, "WK NEW: %s 0x", 371 nwk_state[di.new_wk_state - '0']); 372 bin2hex(buf + n, di.new_wkvp, sizeof(di.new_wkvp)); 373 n += 2 * sizeof(di.new_wkvp); 374 n += sysfs_emit_at(buf, n, "\n"); 375 } else { 376 n += sysfs_emit_at(buf, n, "WK NEW: - -\n"); 377 } 378 379 return n; 380 } 381 382 static struct device_attribute dev_attr_ep11_mkvps = 383 __ATTR(mkvps, 0444, ep11_mkvps_show, NULL); 384 385 static ssize_t ep11_queue_op_modes_show(struct device *dev, 386 struct device_attribute *attr, 387 char *buf) 388 { 389 struct zcrypt_queue *zq = dev_get_drvdata(dev); 390 int i, n = 0; 391 struct ep11_domain_info di; 392 393 memset(&di, 0, sizeof(di)); 394 395 if (zq->online) 396 ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), 397 AP_QID_QUEUE(zq->queue->qid), 398 &di); 399 400 for (i = 0; ep11_op_modes[i].mode_txt; i++) { 401 if (di.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { 402 if (n > 0) 403 buf[n++] = ' '; 404 n += sysfs_emit_at(buf, n, "%s", 405 ep11_op_modes[i].mode_txt); 406 } 407 } 408 n += sysfs_emit_at(buf, n, "\n"); 409 410 return n; 411 } 412 413 static struct device_attribute dev_attr_ep11_queue_op_modes = 414 __ATTR(op_modes, 0444, ep11_queue_op_modes_show, NULL); 415 416 static struct attribute *ep11_queue_attrs[] = { 417 &dev_attr_ep11_mkvps.attr, 418 &dev_attr_ep11_queue_op_modes.attr, 419 NULL, 420 }; 421 422 static const struct attribute_group ep11_queue_attr_grp = { 423 .attrs = ep11_queue_attrs, 424 }; 425 426 /* 427 * Probe function for CEX[45678] card device. It always 428 * accepts the AP device since the bus_match already checked 429 * the hardware type. 430 * @ap_dev: pointer to the AP device. 431 */ 432 static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) 433 { 434 /* 435 * Normalized speed ratings per crypto adapter 436 * MEX_1k, MEX_2k, MEX_4k, CRT_1k, CRT_2k, CRT_4k, RNG, SECKEY 437 */ 438 static const int CEX4A_SPEED_IDX[NUM_OPS] = { 439 14, 19, 249, 42, 228, 1458, 0, 0}; 440 static const int CEX5A_SPEED_IDX[NUM_OPS] = { 441 8, 9, 20, 18, 66, 458, 0, 0}; 442 static const int CEX6A_SPEED_IDX[NUM_OPS] = { 443 6, 9, 20, 17, 65, 438, 0, 0}; 444 static const int CEX7A_SPEED_IDX[NUM_OPS] = { 445 6, 8, 17, 15, 54, 362, 0, 0}; 446 static const int CEX8A_SPEED_IDX[NUM_OPS] = { 447 6, 8, 17, 15, 54, 362, 0, 0}; 448 449 static const int CEX4C_SPEED_IDX[NUM_OPS] = { 450 59, 69, 308, 83, 278, 2204, 209, 40}; 451 static const int CEX5C_SPEED_IDX[] = { 452 24, 31, 50, 37, 90, 479, 27, 10}; 453 static const int CEX6C_SPEED_IDX[NUM_OPS] = { 454 16, 20, 32, 27, 77, 455, 24, 9}; 455 static const int CEX7C_SPEED_IDX[NUM_OPS] = { 456 14, 16, 26, 23, 64, 376, 23, 8}; 457 static const int CEX8C_SPEED_IDX[NUM_OPS] = { 458 14, 16, 26, 23, 64, 376, 23, 8}; 459 460 static const int CEX4P_SPEED_IDX[NUM_OPS] = { 461 0, 0, 0, 0, 0, 0, 0, 50}; 462 static const int CEX5P_SPEED_IDX[NUM_OPS] = { 463 0, 0, 0, 0, 0, 0, 0, 10}; 464 static const int CEX6P_SPEED_IDX[NUM_OPS] = { 465 0, 0, 0, 0, 0, 0, 0, 9}; 466 static const int CEX7P_SPEED_IDX[NUM_OPS] = { 467 0, 0, 0, 0, 0, 0, 0, 8}; 468 static const int CEX8P_SPEED_IDX[NUM_OPS] = { 469 0, 0, 0, 0, 0, 0, 0, 8}; 470 471 struct ap_card *ac = to_ap_card(&ap_dev->device); 472 struct zcrypt_card *zc; 473 int rc = 0; 474 475 zc = zcrypt_card_alloc(); 476 if (!zc) 477 return -ENOMEM; 478 zc->card = ac; 479 dev_set_drvdata(&ap_dev->device, zc); 480 if (ac->hwinfo.accel) { 481 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 482 zc->type_string = "CEX4A"; 483 zc->user_space_type = ZCRYPT_CEX4; 484 zc->speed_rating = CEX4A_SPEED_IDX; 485 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 486 zc->type_string = "CEX5A"; 487 zc->user_space_type = ZCRYPT_CEX5; 488 zc->speed_rating = CEX5A_SPEED_IDX; 489 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 490 zc->type_string = "CEX6A"; 491 zc->user_space_type = ZCRYPT_CEX6; 492 zc->speed_rating = CEX6A_SPEED_IDX; 493 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 494 zc->type_string = "CEX7A"; 495 zc->speed_rating = CEX7A_SPEED_IDX; 496 /* wrong user space type, just for compatibility 497 * with the ZCRYPT_STATUS_MASK ioctl. 498 */ 499 zc->user_space_type = ZCRYPT_CEX6; 500 } else { 501 zc->type_string = "CEX8A"; 502 zc->speed_rating = CEX8A_SPEED_IDX; 503 /* wrong user space type, just for compatibility 504 * with the ZCRYPT_STATUS_MASK ioctl. 505 */ 506 zc->user_space_type = ZCRYPT_CEX6; 507 } 508 zc->min_mod_size = CEX4A_MIN_MOD_SIZE; 509 if (ac->hwinfo.mex4k && ac->hwinfo.crt4k) { 510 zc->max_mod_size = CEX4A_MAX_MOD_SIZE_4K; 511 zc->max_exp_bit_length = 512 CEX4A_MAX_MOD_SIZE_4K; 513 } else { 514 zc->max_mod_size = CEX4A_MAX_MOD_SIZE_2K; 515 zc->max_exp_bit_length = 516 CEX4A_MAX_MOD_SIZE_2K; 517 } 518 } else if (ac->hwinfo.cca) { 519 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 520 zc->type_string = "CEX4C"; 521 zc->speed_rating = CEX4C_SPEED_IDX; 522 /* wrong user space type, must be CEX3C 523 * just keep it for cca compatibility 524 */ 525 zc->user_space_type = ZCRYPT_CEX3C; 526 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 527 zc->type_string = "CEX5C"; 528 zc->speed_rating = CEX5C_SPEED_IDX; 529 /* wrong user space type, must be CEX3C 530 * just keep it for cca compatibility 531 */ 532 zc->user_space_type = ZCRYPT_CEX3C; 533 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 534 zc->type_string = "CEX6C"; 535 zc->speed_rating = CEX6C_SPEED_IDX; 536 /* wrong user space type, must be CEX3C 537 * just keep it for cca compatibility 538 */ 539 zc->user_space_type = ZCRYPT_CEX3C; 540 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 541 zc->type_string = "CEX7C"; 542 zc->speed_rating = CEX7C_SPEED_IDX; 543 /* wrong user space type, must be CEX3C 544 * just keep it for cca compatibility 545 */ 546 zc->user_space_type = ZCRYPT_CEX3C; 547 } else { 548 zc->type_string = "CEX8C"; 549 zc->speed_rating = CEX8C_SPEED_IDX; 550 /* wrong user space type, must be CEX3C 551 * just keep it for cca compatibility 552 */ 553 zc->user_space_type = ZCRYPT_CEX3C; 554 } 555 zc->min_mod_size = CEX4C_MIN_MOD_SIZE; 556 zc->max_mod_size = CEX4C_MAX_MOD_SIZE; 557 zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; 558 } else if (ac->hwinfo.ep11) { 559 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 560 zc->type_string = "CEX4P"; 561 zc->user_space_type = ZCRYPT_CEX4; 562 zc->speed_rating = CEX4P_SPEED_IDX; 563 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 564 zc->type_string = "CEX5P"; 565 zc->user_space_type = ZCRYPT_CEX5; 566 zc->speed_rating = CEX5P_SPEED_IDX; 567 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 568 zc->type_string = "CEX6P"; 569 zc->user_space_type = ZCRYPT_CEX6; 570 zc->speed_rating = CEX6P_SPEED_IDX; 571 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 572 zc->type_string = "CEX7P"; 573 zc->speed_rating = CEX7P_SPEED_IDX; 574 /* wrong user space type, just for compatibility 575 * with the ZCRYPT_STATUS_MASK ioctl. 576 */ 577 zc->user_space_type = ZCRYPT_CEX6; 578 } else { 579 zc->type_string = "CEX8P"; 580 zc->speed_rating = CEX8P_SPEED_IDX; 581 /* wrong user space type, just for compatibility 582 * with the ZCRYPT_STATUS_MASK ioctl. 583 */ 584 zc->user_space_type = ZCRYPT_CEX6; 585 } 586 zc->min_mod_size = CEX4C_MIN_MOD_SIZE; 587 zc->max_mod_size = CEX4C_MAX_MOD_SIZE; 588 zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; 589 } else { 590 zcrypt_card_free(zc); 591 return -ENODEV; 592 } 593 zc->online = 1; 594 595 rc = zcrypt_card_register(zc); 596 if (rc) { 597 zcrypt_card_free(zc); 598 return rc; 599 } 600 601 if (ac->hwinfo.cca) { 602 rc = sysfs_create_group(&ap_dev->device.kobj, 603 &cca_card_attr_grp); 604 if (rc) { 605 zcrypt_card_unregister(zc); 606 zcrypt_card_free(zc); 607 } 608 } else if (ac->hwinfo.ep11) { 609 rc = sysfs_create_group(&ap_dev->device.kobj, 610 &ep11_card_attr_grp); 611 if (rc) { 612 zcrypt_card_unregister(zc); 613 zcrypt_card_free(zc); 614 } 615 } 616 617 return rc; 618 } 619 620 /* 621 * This is called to remove the CEX[45678] card driver 622 * information if an AP card device is removed. 623 */ 624 static void zcrypt_cex4_card_remove(struct ap_device *ap_dev) 625 { 626 struct zcrypt_card *zc = dev_get_drvdata(&ap_dev->device); 627 struct ap_card *ac = to_ap_card(&ap_dev->device); 628 629 if (ac->hwinfo.cca) 630 sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp); 631 else if (ac->hwinfo.ep11) 632 sysfs_remove_group(&ap_dev->device.kobj, &ep11_card_attr_grp); 633 634 zcrypt_card_unregister(zc); 635 } 636 637 static struct ap_driver zcrypt_cex4_card_driver = { 638 .probe = zcrypt_cex4_card_probe, 639 .remove = zcrypt_cex4_card_remove, 640 .ids = zcrypt_cex4_card_ids, 641 .flags = AP_DRIVER_FLAG_DEFAULT, 642 }; 643 644 /* 645 * Probe function for CEX[45678] queue device. It always 646 * accepts the AP device since the bus_match already checked 647 * the hardware type. 648 * @ap_dev: pointer to the AP device. 649 */ 650 static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) 651 { 652 struct ap_queue *aq = to_ap_queue(&ap_dev->device); 653 struct zcrypt_queue *zq; 654 int rc; 655 656 if (aq->card->hwinfo.accel) { 657 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 658 if (!zq) 659 return -ENOMEM; 660 zq->ops = zcrypt_msgtype(MSGTYPE50_NAME, 661 MSGTYPE50_VARIANT_DEFAULT); 662 } else if (aq->card->hwinfo.cca) { 663 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 664 if (!zq) 665 return -ENOMEM; 666 zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, 667 MSGTYPE06_VARIANT_DEFAULT); 668 } else if (aq->card->hwinfo.ep11) { 669 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 670 if (!zq) 671 return -ENOMEM; 672 zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, 673 MSGTYPE06_VARIANT_EP11); 674 } else { 675 return -ENODEV; 676 } 677 678 zq->queue = aq; 679 zq->online = 1; 680 atomic_set(&zq->load, 0); 681 ap_queue_init_state(aq); 682 ap_queue_init_reply(aq, &zq->reply); 683 aq->request_timeout = CEX4_CLEANUP_TIME; 684 dev_set_drvdata(&ap_dev->device, zq); 685 rc = zcrypt_queue_register(zq); 686 if (rc) { 687 zcrypt_queue_free(zq); 688 return rc; 689 } 690 691 if (aq->card->hwinfo.cca) { 692 rc = sysfs_create_group(&ap_dev->device.kobj, 693 &cca_queue_attr_grp); 694 if (rc) { 695 zcrypt_queue_unregister(zq); 696 zcrypt_queue_free(zq); 697 } 698 } else if (aq->card->hwinfo.ep11) { 699 rc = sysfs_create_group(&ap_dev->device.kobj, 700 &ep11_queue_attr_grp); 701 if (rc) { 702 zcrypt_queue_unregister(zq); 703 zcrypt_queue_free(zq); 704 } 705 } 706 707 return rc; 708 } 709 710 /* 711 * This is called to remove the CEX[45678] queue driver 712 * information if an AP queue device is removed. 713 */ 714 static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev) 715 { 716 struct zcrypt_queue *zq = dev_get_drvdata(&ap_dev->device); 717 struct ap_queue *aq = to_ap_queue(&ap_dev->device); 718 719 if (aq->card->hwinfo.cca) 720 sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp); 721 else if (aq->card->hwinfo.ep11) 722 sysfs_remove_group(&ap_dev->device.kobj, &ep11_queue_attr_grp); 723 724 zcrypt_queue_unregister(zq); 725 } 726 727 static struct ap_driver zcrypt_cex4_queue_driver = { 728 .probe = zcrypt_cex4_queue_probe, 729 .remove = zcrypt_cex4_queue_remove, 730 .ids = zcrypt_cex4_queue_ids, 731 .flags = AP_DRIVER_FLAG_DEFAULT, 732 }; 733 734 int __init zcrypt_cex4_init(void) 735 { 736 int rc; 737 738 rc = ap_driver_register(&zcrypt_cex4_card_driver, 739 THIS_MODULE, "cex4card"); 740 if (rc) 741 return rc; 742 743 rc = ap_driver_register(&zcrypt_cex4_queue_driver, 744 THIS_MODULE, "cex4queue"); 745 if (rc) 746 ap_driver_unregister(&zcrypt_cex4_card_driver); 747 748 return rc; 749 } 750 751 void __exit zcrypt_cex4_exit(void) 752 { 753 ap_driver_unregister(&zcrypt_cex4_queue_driver); 754 ap_driver_unregister(&zcrypt_cex4_card_driver); 755 } 756 757 module_init(zcrypt_cex4_init); 758 module_exit(zcrypt_cex4_exit); 759