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 38MODULE_AUTHOR("IBM Corporation"); 39MODULE_DESCRIPTION("CEX[45678] Cryptographic Card device driver, " \ 40 "Copyright IBM Corp. 2022"); 41MODULE_LICENSE("GPL"); 42 43static 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 57MODULE_DEVICE_TABLE(ap, zcrypt_cex4_card_ids); 58 59static 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 73MODULE_DEVICE_TABLE(ap, zcrypt_cex4_queue_ids); 74 75/* 76 * CCA card additional device attributes 77 */ 78static 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 94static struct device_attribute dev_attr_cca_serialnr = 95 __ATTR(serialnr, 0444, cca_serialnr_show, NULL); 96 97static struct attribute *cca_card_attrs[] = { 98 &dev_attr_cca_serialnr.attr, 99 NULL, 100}; 101 102static const struct attribute_group cca_card_attr_grp = { 103 .attrs = cca_card_attrs, 104}; 105 106 /* 107 * CCA queue additional device attributes 108 */ 109static 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 194static struct device_attribute dev_attr_cca_mkvps = 195 __ATTR(mkvps, 0444, cca_mkvps_show, NULL); 196 197static struct attribute *cca_queue_attrs[] = { 198 &dev_attr_cca_mkvps.attr, 199 NULL, 200}; 201 202static const struct attribute_group cca_queue_attr_grp = { 203 .attrs = cca_queue_attrs, 204}; 205 206/* 207 * EP11 card additional device attributes 208 */ 209static 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 227static struct device_attribute dev_attr_ep11_api_ordinalnr = 228 __ATTR(API_ordinalnr, 0444, ep11_api_ordinalnr_show, NULL); 229 230static 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 250static struct device_attribute dev_attr_ep11_fw_version = 251 __ATTR(FW_version, 0444, ep11_fw_version_show, NULL); 252 253static 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 271static struct device_attribute dev_attr_ep11_serialnr = 272 __ATTR(serialnr, 0444, ep11_serialnr_show, NULL); 273 274static 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 { 6, "BSICC2017" }, 283 { 0, NULL } 284}; 285 286static ssize_t ep11_card_op_modes_show(struct device *dev, 287 struct device_attribute *attr, 288 char *buf) 289{ 290 struct zcrypt_card *zc = dev_get_drvdata(dev); 291 int i, n = 0; 292 struct ep11_card_info ci; 293 struct ap_card *ac = to_ap_card(dev); 294 295 memset(&ci, 0, sizeof(ci)); 296 297 ep11_get_card_info(ac->id, &ci, zc->online); 298 299 for (i = 0; ep11_op_modes[i].mode_txt; i++) { 300 if (ci.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { 301 if (n > 0) 302 buf[n++] = ' '; 303 n += sysfs_emit_at(buf, n, "%s", 304 ep11_op_modes[i].mode_txt); 305 } 306 } 307 n += sysfs_emit_at(buf, n, "\n"); 308 309 return n; 310} 311 312static struct device_attribute dev_attr_ep11_card_op_modes = 313 __ATTR(op_modes, 0444, ep11_card_op_modes_show, NULL); 314 315static struct attribute *ep11_card_attrs[] = { 316 &dev_attr_ep11_api_ordinalnr.attr, 317 &dev_attr_ep11_fw_version.attr, 318 &dev_attr_ep11_serialnr.attr, 319 &dev_attr_ep11_card_op_modes.attr, 320 NULL, 321}; 322 323static const struct attribute_group ep11_card_attr_grp = { 324 .attrs = ep11_card_attrs, 325}; 326 327/* 328 * EP11 queue additional device attributes 329 */ 330 331static ssize_t ep11_mkvps_show(struct device *dev, 332 struct device_attribute *attr, 333 char *buf) 334{ 335 struct zcrypt_queue *zq = dev_get_drvdata(dev); 336 int n = 0; 337 struct ep11_domain_info di; 338 static const char * const cwk_state[] = { "invalid", "valid" }; 339 static const char * const nwk_state[] = { "empty", "uncommitted", 340 "committed" }; 341 342 memset(&di, 0, sizeof(di)); 343 344 if (zq->online) 345 ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), 346 AP_QID_QUEUE(zq->queue->qid), 347 &di); 348 349 if (di.cur_wk_state == '0') { 350 n = sysfs_emit(buf, "WK CUR: %s -\n", 351 cwk_state[di.cur_wk_state - '0']); 352 } else if (di.cur_wk_state == '1') { 353 n = sysfs_emit(buf, "WK CUR: %s 0x", 354 cwk_state[di.cur_wk_state - '0']); 355 bin2hex(buf + n, di.cur_wkvp, sizeof(di.cur_wkvp)); 356 n += 2 * sizeof(di.cur_wkvp); 357 n += sysfs_emit_at(buf, n, "\n"); 358 } else { 359 n = sysfs_emit(buf, "WK CUR: - -\n"); 360 } 361 362 if (di.new_wk_state == '0') { 363 n += sysfs_emit_at(buf, n, "WK NEW: %s -\n", 364 nwk_state[di.new_wk_state - '0']); 365 } else if (di.new_wk_state >= '1' && di.new_wk_state <= '2') { 366 n += sysfs_emit_at(buf, n, "WK NEW: %s 0x", 367 nwk_state[di.new_wk_state - '0']); 368 bin2hex(buf + n, di.new_wkvp, sizeof(di.new_wkvp)); 369 n += 2 * sizeof(di.new_wkvp); 370 n += sysfs_emit_at(buf, n, "\n"); 371 } else { 372 n += sysfs_emit_at(buf, n, "WK NEW: - -\n"); 373 } 374 375 return n; 376} 377 378static struct device_attribute dev_attr_ep11_mkvps = 379 __ATTR(mkvps, 0444, ep11_mkvps_show, NULL); 380 381static ssize_t ep11_queue_op_modes_show(struct device *dev, 382 struct device_attribute *attr, 383 char *buf) 384{ 385 struct zcrypt_queue *zq = dev_get_drvdata(dev); 386 int i, n = 0; 387 struct ep11_domain_info di; 388 389 memset(&di, 0, sizeof(di)); 390 391 if (zq->online) 392 ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), 393 AP_QID_QUEUE(zq->queue->qid), 394 &di); 395 396 for (i = 0; ep11_op_modes[i].mode_txt; i++) { 397 if (di.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { 398 if (n > 0) 399 buf[n++] = ' '; 400 n += sysfs_emit_at(buf, n, "%s", 401 ep11_op_modes[i].mode_txt); 402 } 403 } 404 n += sysfs_emit_at(buf, n, "\n"); 405 406 return n; 407} 408 409static struct device_attribute dev_attr_ep11_queue_op_modes = 410 __ATTR(op_modes, 0444, ep11_queue_op_modes_show, NULL); 411 412static struct attribute *ep11_queue_attrs[] = { 413 &dev_attr_ep11_mkvps.attr, 414 &dev_attr_ep11_queue_op_modes.attr, 415 NULL, 416}; 417 418static const struct attribute_group ep11_queue_attr_grp = { 419 .attrs = ep11_queue_attrs, 420}; 421 422/* 423 * Probe function for CEX[45678] card device. It always 424 * accepts the AP device since the bus_match already checked 425 * the hardware type. 426 * @ap_dev: pointer to the AP device. 427 */ 428static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) 429{ 430 /* 431 * Normalized speed ratings per crypto adapter 432 * MEX_1k, MEX_2k, MEX_4k, CRT_1k, CRT_2k, CRT_4k, RNG, SECKEY 433 */ 434 static const int CEX4A_SPEED_IDX[NUM_OPS] = { 435 14, 19, 249, 42, 228, 1458, 0, 0}; 436 static const int CEX5A_SPEED_IDX[NUM_OPS] = { 437 8, 9, 20, 18, 66, 458, 0, 0}; 438 static const int CEX6A_SPEED_IDX[NUM_OPS] = { 439 6, 9, 20, 17, 65, 438, 0, 0}; 440 static const int CEX7A_SPEED_IDX[NUM_OPS] = { 441 6, 8, 17, 15, 54, 362, 0, 0}; 442 static const int CEX8A_SPEED_IDX[NUM_OPS] = { 443 6, 8, 17, 15, 54, 362, 0, 0}; 444 445 static const int CEX4C_SPEED_IDX[NUM_OPS] = { 446 59, 69, 308, 83, 278, 2204, 209, 40}; 447 static const int CEX5C_SPEED_IDX[] = { 448 24, 31, 50, 37, 90, 479, 27, 10}; 449 static const int CEX6C_SPEED_IDX[NUM_OPS] = { 450 16, 20, 32, 27, 77, 455, 24, 9}; 451 static const int CEX7C_SPEED_IDX[NUM_OPS] = { 452 14, 16, 26, 23, 64, 376, 23, 8}; 453 static const int CEX8C_SPEED_IDX[NUM_OPS] = { 454 14, 16, 26, 23, 64, 376, 23, 8}; 455 456 static const int CEX4P_SPEED_IDX[NUM_OPS] = { 457 0, 0, 0, 0, 0, 0, 0, 50}; 458 static const int CEX5P_SPEED_IDX[NUM_OPS] = { 459 0, 0, 0, 0, 0, 0, 0, 10}; 460 static const int CEX6P_SPEED_IDX[NUM_OPS] = { 461 0, 0, 0, 0, 0, 0, 0, 9}; 462 static const int CEX7P_SPEED_IDX[NUM_OPS] = { 463 0, 0, 0, 0, 0, 0, 0, 8}; 464 static const int CEX8P_SPEED_IDX[NUM_OPS] = { 465 0, 0, 0, 0, 0, 0, 0, 8}; 466 467 struct ap_card *ac = to_ap_card(&ap_dev->device); 468 struct zcrypt_card *zc; 469 int rc = 0; 470 471 zc = zcrypt_card_alloc(); 472 if (!zc) 473 return -ENOMEM; 474 zc->card = ac; 475 dev_set_drvdata(&ap_dev->device, zc); 476 if (ap_test_bit(&ac->functions, AP_FUNC_ACCEL)) { 477 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 478 zc->type_string = "CEX4A"; 479 zc->user_space_type = ZCRYPT_CEX4; 480 zc->speed_rating = CEX4A_SPEED_IDX; 481 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 482 zc->type_string = "CEX5A"; 483 zc->user_space_type = ZCRYPT_CEX5; 484 zc->speed_rating = CEX5A_SPEED_IDX; 485 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 486 zc->type_string = "CEX6A"; 487 zc->user_space_type = ZCRYPT_CEX6; 488 zc->speed_rating = CEX6A_SPEED_IDX; 489 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 490 zc->type_string = "CEX7A"; 491 zc->speed_rating = CEX7A_SPEED_IDX; 492 /* wrong user space type, just for compatibility 493 * with the ZCRYPT_STATUS_MASK ioctl. 494 */ 495 zc->user_space_type = ZCRYPT_CEX6; 496 } else { 497 zc->type_string = "CEX8A"; 498 zc->speed_rating = CEX8A_SPEED_IDX; 499 /* wrong user space type, just for compatibility 500 * with the ZCRYPT_STATUS_MASK ioctl. 501 */ 502 zc->user_space_type = ZCRYPT_CEX6; 503 } 504 zc->min_mod_size = CEX4A_MIN_MOD_SIZE; 505 if (ap_test_bit(&ac->functions, AP_FUNC_MEX4K) && 506 ap_test_bit(&ac->functions, AP_FUNC_CRT4K)) { 507 zc->max_mod_size = CEX4A_MAX_MOD_SIZE_4K; 508 zc->max_exp_bit_length = 509 CEX4A_MAX_MOD_SIZE_4K; 510 } else { 511 zc->max_mod_size = CEX4A_MAX_MOD_SIZE_2K; 512 zc->max_exp_bit_length = 513 CEX4A_MAX_MOD_SIZE_2K; 514 } 515 } else if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) { 516 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 517 zc->type_string = "CEX4C"; 518 zc->speed_rating = CEX4C_SPEED_IDX; 519 /* wrong user space type, must be CEX3C 520 * just keep it for cca compatibility 521 */ 522 zc->user_space_type = ZCRYPT_CEX3C; 523 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 524 zc->type_string = "CEX5C"; 525 zc->speed_rating = CEX5C_SPEED_IDX; 526 /* wrong user space type, must be CEX3C 527 * just keep it for cca compatibility 528 */ 529 zc->user_space_type = ZCRYPT_CEX3C; 530 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 531 zc->type_string = "CEX6C"; 532 zc->speed_rating = CEX6C_SPEED_IDX; 533 /* wrong user space type, must be CEX3C 534 * just keep it for cca compatibility 535 */ 536 zc->user_space_type = ZCRYPT_CEX3C; 537 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 538 zc->type_string = "CEX7C"; 539 zc->speed_rating = CEX7C_SPEED_IDX; 540 /* wrong user space type, must be CEX3C 541 * just keep it for cca compatibility 542 */ 543 zc->user_space_type = ZCRYPT_CEX3C; 544 } else { 545 zc->type_string = "CEX8C"; 546 zc->speed_rating = CEX8C_SPEED_IDX; 547 /* wrong user space type, must be CEX3C 548 * just keep it for cca compatibility 549 */ 550 zc->user_space_type = ZCRYPT_CEX3C; 551 } 552 zc->min_mod_size = CEX4C_MIN_MOD_SIZE; 553 zc->max_mod_size = CEX4C_MAX_MOD_SIZE; 554 zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; 555 } else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) { 556 if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { 557 zc->type_string = "CEX4P"; 558 zc->user_space_type = ZCRYPT_CEX4; 559 zc->speed_rating = CEX4P_SPEED_IDX; 560 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { 561 zc->type_string = "CEX5P"; 562 zc->user_space_type = ZCRYPT_CEX5; 563 zc->speed_rating = CEX5P_SPEED_IDX; 564 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { 565 zc->type_string = "CEX6P"; 566 zc->user_space_type = ZCRYPT_CEX6; 567 zc->speed_rating = CEX6P_SPEED_IDX; 568 } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { 569 zc->type_string = "CEX7P"; 570 zc->speed_rating = CEX7P_SPEED_IDX; 571 /* wrong user space type, just for compatibility 572 * with the ZCRYPT_STATUS_MASK ioctl. 573 */ 574 zc->user_space_type = ZCRYPT_CEX6; 575 } else { 576 zc->type_string = "CEX8P"; 577 zc->speed_rating = CEX8P_SPEED_IDX; 578 /* wrong user space type, just for compatibility 579 * with the ZCRYPT_STATUS_MASK ioctl. 580 */ 581 zc->user_space_type = ZCRYPT_CEX6; 582 } 583 zc->min_mod_size = CEX4C_MIN_MOD_SIZE; 584 zc->max_mod_size = CEX4C_MAX_MOD_SIZE; 585 zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; 586 } else { 587 zcrypt_card_free(zc); 588 return -ENODEV; 589 } 590 zc->online = 1; 591 592 rc = zcrypt_card_register(zc); 593 if (rc) { 594 zcrypt_card_free(zc); 595 return rc; 596 } 597 598 if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) { 599 rc = sysfs_create_group(&ap_dev->device.kobj, 600 &cca_card_attr_grp); 601 if (rc) { 602 zcrypt_card_unregister(zc); 603 zcrypt_card_free(zc); 604 } 605 } else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) { 606 rc = sysfs_create_group(&ap_dev->device.kobj, 607 &ep11_card_attr_grp); 608 if (rc) { 609 zcrypt_card_unregister(zc); 610 zcrypt_card_free(zc); 611 } 612 } 613 614 return rc; 615} 616 617/* 618 * This is called to remove the CEX[45678] card driver 619 * information if an AP card device is removed. 620 */ 621static void zcrypt_cex4_card_remove(struct ap_device *ap_dev) 622{ 623 struct zcrypt_card *zc = dev_get_drvdata(&ap_dev->device); 624 struct ap_card *ac = to_ap_card(&ap_dev->device); 625 626 if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) 627 sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp); 628 else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) 629 sysfs_remove_group(&ap_dev->device.kobj, &ep11_card_attr_grp); 630 631 zcrypt_card_unregister(zc); 632} 633 634static struct ap_driver zcrypt_cex4_card_driver = { 635 .probe = zcrypt_cex4_card_probe, 636 .remove = zcrypt_cex4_card_remove, 637 .ids = zcrypt_cex4_card_ids, 638 .flags = AP_DRIVER_FLAG_DEFAULT, 639}; 640 641/* 642 * Probe function for CEX[45678] queue device. It always 643 * accepts the AP device since the bus_match already checked 644 * the hardware type. 645 * @ap_dev: pointer to the AP device. 646 */ 647static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) 648{ 649 struct ap_queue *aq = to_ap_queue(&ap_dev->device); 650 struct zcrypt_queue *zq; 651 int rc; 652 653 if (ap_test_bit(&aq->card->functions, AP_FUNC_ACCEL)) { 654 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 655 if (!zq) 656 return -ENOMEM; 657 zq->ops = zcrypt_msgtype(MSGTYPE50_NAME, 658 MSGTYPE50_VARIANT_DEFAULT); 659 } else if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) { 660 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 661 if (!zq) 662 return -ENOMEM; 663 zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, 664 MSGTYPE06_VARIANT_DEFAULT); 665 } else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) { 666 zq = zcrypt_queue_alloc(aq->card->maxmsgsize); 667 if (!zq) 668 return -ENOMEM; 669 zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, 670 MSGTYPE06_VARIANT_EP11); 671 } else { 672 return -ENODEV; 673 } 674 675 zq->queue = aq; 676 zq->online = 1; 677 atomic_set(&zq->load, 0); 678 ap_queue_init_state(aq); 679 ap_queue_init_reply(aq, &zq->reply); 680 aq->request_timeout = CEX4_CLEANUP_TIME; 681 dev_set_drvdata(&ap_dev->device, zq); 682 rc = zcrypt_queue_register(zq); 683 if (rc) { 684 zcrypt_queue_free(zq); 685 return rc; 686 } 687 688 if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) { 689 rc = sysfs_create_group(&ap_dev->device.kobj, 690 &cca_queue_attr_grp); 691 if (rc) { 692 zcrypt_queue_unregister(zq); 693 zcrypt_queue_free(zq); 694 } 695 } else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) { 696 rc = sysfs_create_group(&ap_dev->device.kobj, 697 &ep11_queue_attr_grp); 698 if (rc) { 699 zcrypt_queue_unregister(zq); 700 zcrypt_queue_free(zq); 701 } 702 } 703 704 return rc; 705} 706 707/* 708 * This is called to remove the CEX[45678] queue driver 709 * information if an AP queue device is removed. 710 */ 711static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev) 712{ 713 struct zcrypt_queue *zq = dev_get_drvdata(&ap_dev->device); 714 struct ap_queue *aq = to_ap_queue(&ap_dev->device); 715 716 if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) 717 sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp); 718 else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) 719 sysfs_remove_group(&ap_dev->device.kobj, &ep11_queue_attr_grp); 720 721 zcrypt_queue_unregister(zq); 722} 723 724static struct ap_driver zcrypt_cex4_queue_driver = { 725 .probe = zcrypt_cex4_queue_probe, 726 .remove = zcrypt_cex4_queue_remove, 727 .ids = zcrypt_cex4_queue_ids, 728 .flags = AP_DRIVER_FLAG_DEFAULT, 729}; 730 731int __init zcrypt_cex4_init(void) 732{ 733 int rc; 734 735 rc = ap_driver_register(&zcrypt_cex4_card_driver, 736 THIS_MODULE, "cex4card"); 737 if (rc) 738 return rc; 739 740 rc = ap_driver_register(&zcrypt_cex4_queue_driver, 741 THIS_MODULE, "cex4queue"); 742 if (rc) 743 ap_driver_unregister(&zcrypt_cex4_card_driver); 744 745 return rc; 746} 747 748void __exit zcrypt_cex4_exit(void) 749{ 750 ap_driver_unregister(&zcrypt_cex4_queue_driver); 751 ap_driver_unregister(&zcrypt_cex4_card_driver); 752} 753 754module_init(zcrypt_cex4_init); 755module_exit(zcrypt_cex4_exit); 756