diff options
Diffstat (limited to 'drivers/s390/crypto/zcrypt_cex4.c')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex4.c | 764 |
1 files changed, 764 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c new file mode 100644 index 000000000..b03916b75 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cex4.c @@ -0,0 +1,764 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright IBM Corp. 2012, 2022 + * Author(s): Holger Dengler <hd@linux.vnet.ibm.com> + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/atomic.h> +#include <linux/uaccess.h> +#include <linux/mod_devicetable.h> + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_msgtype6.h" +#include "zcrypt_msgtype50.h" +#include "zcrypt_error.h" +#include "zcrypt_cex4.h" +#include "zcrypt_ccamisc.h" +#include "zcrypt_ep11misc.h" + +#define CEX4A_MIN_MOD_SIZE 1 /* 8 bits */ +#define CEX4A_MAX_MOD_SIZE_2K 256 /* 2048 bits */ +#define CEX4A_MAX_MOD_SIZE_4K 512 /* 4096 bits */ + +#define CEX4C_MIN_MOD_SIZE 16 /* 256 bits */ +#define CEX4C_MAX_MOD_SIZE 512 /* 4096 bits */ + +/* Waiting time for requests to be processed. + * Currently there are some types of request which are not deterministic. + * But the maximum time limit managed by the stomper code is set to 60sec. + * Hence we have to wait at least that time period. + */ +#define CEX4_CLEANUP_TIME (900 * HZ) + +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("CEX[45678] Cryptographic Card device driver, " \ + "Copyright IBM Corp. 2022"); +MODULE_LICENSE("GPL"); + +static struct ap_device_id zcrypt_cex4_card_ids[] = { + { .dev_type = AP_DEVICE_TYPE_CEX4, + .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX5, + .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX6, + .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX7, + .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX8, + .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE }, + { /* end of list */ }, +}; + +MODULE_DEVICE_TABLE(ap, zcrypt_cex4_card_ids); + +static struct ap_device_id zcrypt_cex4_queue_ids[] = { + { .dev_type = AP_DEVICE_TYPE_CEX4, + .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX5, + .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX6, + .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX7, + .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, + { .dev_type = AP_DEVICE_TYPE_CEX8, + .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE }, + { /* end of list */ }, +}; + +MODULE_DEVICE_TABLE(ap, zcrypt_cex4_queue_ids); + +/* + * CCA card additional device attributes + */ +static ssize_t cca_serialnr_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = dev_get_drvdata(dev); + struct cca_info ci; + struct ap_card *ac = to_ap_card(dev); + + memset(&ci, 0, sizeof(ci)); + + if (ap_domain_index >= 0) + cca_get_info(ac->id, ap_domain_index, &ci, zc->online); + + return scnprintf(buf, PAGE_SIZE, "%s\n", ci.serial); +} + +static struct device_attribute dev_attr_cca_serialnr = + __ATTR(serialnr, 0444, cca_serialnr_show, NULL); + +static struct attribute *cca_card_attrs[] = { + &dev_attr_cca_serialnr.attr, + NULL, +}; + +static const struct attribute_group cca_card_attr_grp = { + .attrs = cca_card_attrs, +}; + + /* + * CCA queue additional device attributes + */ +static ssize_t cca_mkvps_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_queue *zq = dev_get_drvdata(dev); + int n = 0; + struct cca_info ci; + static const char * const cao_state[] = { "invalid", "valid" }; + static const char * const new_state[] = { "empty", "partial", "full" }; + + memset(&ci, 0, sizeof(ci)); + + cca_get_info(AP_QID_CARD(zq->queue->qid), + AP_QID_QUEUE(zq->queue->qid), + &ci, zq->online); + + if (ci.new_aes_mk_state >= '1' && ci.new_aes_mk_state <= '3') + n += scnprintf(buf + n, PAGE_SIZE, + "AES NEW: %s 0x%016llx\n", + new_state[ci.new_aes_mk_state - '1'], + ci.new_aes_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE, "AES NEW: - -\n"); + + if (ci.cur_aes_mk_state >= '1' && ci.cur_aes_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "AES CUR: %s 0x%016llx\n", + cao_state[ci.cur_aes_mk_state - '1'], + ci.cur_aes_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "AES CUR: - -\n"); + + if (ci.old_aes_mk_state >= '1' && ci.old_aes_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "AES OLD: %s 0x%016llx\n", + cao_state[ci.old_aes_mk_state - '1'], + ci.old_aes_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "AES OLD: - -\n"); + + if (ci.new_apka_mk_state >= '1' && ci.new_apka_mk_state <= '3') + n += scnprintf(buf + n, PAGE_SIZE - n, + "APKA NEW: %s 0x%016llx\n", + new_state[ci.new_apka_mk_state - '1'], + ci.new_apka_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "APKA NEW: - -\n"); + + if (ci.cur_apka_mk_state >= '1' && ci.cur_apka_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "APKA CUR: %s 0x%016llx\n", + cao_state[ci.cur_apka_mk_state - '1'], + ci.cur_apka_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "APKA CUR: - -\n"); + + if (ci.old_apka_mk_state >= '1' && ci.old_apka_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "APKA OLD: %s 0x%016llx\n", + cao_state[ci.old_apka_mk_state - '1'], + ci.old_apka_mkvp); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "APKA OLD: - -\n"); + + if (ci.new_asym_mk_state >= '1' && ci.new_asym_mk_state <= '3') + n += scnprintf(buf + n, PAGE_SIZE, + "ASYM NEW: %s 0x%016llx%016llx\n", + new_state[ci.new_asym_mk_state - '1'], + *((u64 *)(ci.new_asym_mkvp)), + *((u64 *)(ci.new_asym_mkvp + sizeof(u64)))); + else + n += scnprintf(buf + n, PAGE_SIZE, "ASYM NEW: - -\n"); + + if (ci.cur_asym_mk_state >= '1' && ci.cur_asym_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "ASYM CUR: %s 0x%016llx%016llx\n", + cao_state[ci.cur_asym_mk_state - '1'], + *((u64 *)(ci.cur_asym_mkvp)), + *((u64 *)(ci.cur_asym_mkvp + sizeof(u64)))); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "ASYM CUR: - -\n"); + + if (ci.old_asym_mk_state >= '1' && ci.old_asym_mk_state <= '2') + n += scnprintf(buf + n, PAGE_SIZE - n, + "ASYM OLD: %s 0x%016llx%016llx\n", + cao_state[ci.old_asym_mk_state - '1'], + *((u64 *)(ci.old_asym_mkvp)), + *((u64 *)(ci.old_asym_mkvp + sizeof(u64)))); + else + n += scnprintf(buf + n, PAGE_SIZE - n, "ASYM OLD: - -\n"); + + return n; +} + +static struct device_attribute dev_attr_cca_mkvps = + __ATTR(mkvps, 0444, cca_mkvps_show, NULL); + +static struct attribute *cca_queue_attrs[] = { + &dev_attr_cca_mkvps.attr, + NULL, +}; + +static const struct attribute_group cca_queue_attr_grp = { + .attrs = cca_queue_attrs, +}; + +/* + * EP11 card additional device attributes + */ +static ssize_t ep11_api_ordinalnr_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = dev_get_drvdata(dev); + struct ep11_card_info ci; + struct ap_card *ac = to_ap_card(dev); + + memset(&ci, 0, sizeof(ci)); + + ep11_get_card_info(ac->id, &ci, zc->online); + + if (ci.API_ord_nr > 0) + return scnprintf(buf, PAGE_SIZE, "%u\n", ci.API_ord_nr); + else + return scnprintf(buf, PAGE_SIZE, "\n"); +} + +static struct device_attribute dev_attr_ep11_api_ordinalnr = + __ATTR(API_ordinalnr, 0444, ep11_api_ordinalnr_show, NULL); + +static ssize_t ep11_fw_version_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = dev_get_drvdata(dev); + struct ep11_card_info ci; + struct ap_card *ac = to_ap_card(dev); + + memset(&ci, 0, sizeof(ci)); + + ep11_get_card_info(ac->id, &ci, zc->online); + + if (ci.FW_version > 0) + return scnprintf(buf, PAGE_SIZE, "%d.%d\n", + (int)(ci.FW_version >> 8), + (int)(ci.FW_version & 0xFF)); + else + return scnprintf(buf, PAGE_SIZE, "\n"); +} + +static struct device_attribute dev_attr_ep11_fw_version = + __ATTR(FW_version, 0444, ep11_fw_version_show, NULL); + +static ssize_t ep11_serialnr_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = dev_get_drvdata(dev); + struct ep11_card_info ci; + struct ap_card *ac = to_ap_card(dev); + + memset(&ci, 0, sizeof(ci)); + + ep11_get_card_info(ac->id, &ci, zc->online); + + if (ci.serial[0]) + return scnprintf(buf, PAGE_SIZE, "%16.16s\n", ci.serial); + else + return scnprintf(buf, PAGE_SIZE, "\n"); +} + +static struct device_attribute dev_attr_ep11_serialnr = + __ATTR(serialnr, 0444, ep11_serialnr_show, NULL); + +static const struct { + int mode_bit; + const char *mode_txt; +} ep11_op_modes[] = { + { 0, "FIPS2009" }, + { 1, "BSI2009" }, + { 2, "FIPS2011" }, + { 3, "BSI2011" }, + { 6, "BSICC2017" }, + { 0, NULL } +}; + +static ssize_t ep11_card_op_modes_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_card *zc = dev_get_drvdata(dev); + int i, n = 0; + struct ep11_card_info ci; + struct ap_card *ac = to_ap_card(dev); + + memset(&ci, 0, sizeof(ci)); + + ep11_get_card_info(ac->id, &ci, zc->online); + + for (i = 0; ep11_op_modes[i].mode_txt; i++) { + if (ci.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { + if (n > 0) + buf[n++] = ' '; + n += scnprintf(buf + n, PAGE_SIZE - n, + "%s", ep11_op_modes[i].mode_txt); + } + } + n += scnprintf(buf + n, PAGE_SIZE - n, "\n"); + + return n; +} + +static struct device_attribute dev_attr_ep11_card_op_modes = + __ATTR(op_modes, 0444, ep11_card_op_modes_show, NULL); + +static struct attribute *ep11_card_attrs[] = { + &dev_attr_ep11_api_ordinalnr.attr, + &dev_attr_ep11_fw_version.attr, + &dev_attr_ep11_serialnr.attr, + &dev_attr_ep11_card_op_modes.attr, + NULL, +}; + +static const struct attribute_group ep11_card_attr_grp = { + .attrs = ep11_card_attrs, +}; + +/* + * EP11 queue additional device attributes + */ + +static ssize_t ep11_mkvps_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_queue *zq = dev_get_drvdata(dev); + int n = 0; + struct ep11_domain_info di; + static const char * const cwk_state[] = { "invalid", "valid" }; + static const char * const nwk_state[] = { "empty", "uncommitted", + "committed" }; + + memset(&di, 0, sizeof(di)); + + if (zq->online) + ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), + AP_QID_QUEUE(zq->queue->qid), + &di); + + if (di.cur_wk_state == '0') { + n = scnprintf(buf, PAGE_SIZE, "WK CUR: %s -\n", + cwk_state[di.cur_wk_state - '0']); + } else if (di.cur_wk_state == '1') { + n = scnprintf(buf, PAGE_SIZE, "WK CUR: %s 0x", + cwk_state[di.cur_wk_state - '0']); + bin2hex(buf + n, di.cur_wkvp, sizeof(di.cur_wkvp)); + n += 2 * sizeof(di.cur_wkvp); + n += scnprintf(buf + n, PAGE_SIZE - n, "\n"); + } else { + n = scnprintf(buf, PAGE_SIZE, "WK CUR: - -\n"); + } + + if (di.new_wk_state == '0') { + n += scnprintf(buf + n, PAGE_SIZE - n, "WK NEW: %s -\n", + nwk_state[di.new_wk_state - '0']); + } else if (di.new_wk_state >= '1' && di.new_wk_state <= '2') { + n += scnprintf(buf + n, PAGE_SIZE - n, "WK NEW: %s 0x", + nwk_state[di.new_wk_state - '0']); + bin2hex(buf + n, di.new_wkvp, sizeof(di.new_wkvp)); + n += 2 * sizeof(di.new_wkvp); + n += scnprintf(buf + n, PAGE_SIZE - n, "\n"); + } else { + n += scnprintf(buf + n, PAGE_SIZE - n, "WK NEW: - -\n"); + } + + return n; +} + +static struct device_attribute dev_attr_ep11_mkvps = + __ATTR(mkvps, 0444, ep11_mkvps_show, NULL); + +static ssize_t ep11_queue_op_modes_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct zcrypt_queue *zq = dev_get_drvdata(dev); + int i, n = 0; + struct ep11_domain_info di; + + memset(&di, 0, sizeof(di)); + + if (zq->online) + ep11_get_domain_info(AP_QID_CARD(zq->queue->qid), + AP_QID_QUEUE(zq->queue->qid), + &di); + + for (i = 0; ep11_op_modes[i].mode_txt; i++) { + if (di.op_mode & (1ULL << ep11_op_modes[i].mode_bit)) { + if (n > 0) + buf[n++] = ' '; + n += scnprintf(buf + n, PAGE_SIZE - n, + "%s", ep11_op_modes[i].mode_txt); + } + } + n += scnprintf(buf + n, PAGE_SIZE - n, "\n"); + + return n; +} + +static struct device_attribute dev_attr_ep11_queue_op_modes = + __ATTR(op_modes, 0444, ep11_queue_op_modes_show, NULL); + +static struct attribute *ep11_queue_attrs[] = { + &dev_attr_ep11_mkvps.attr, + &dev_attr_ep11_queue_op_modes.attr, + NULL, +}; + +static const struct attribute_group ep11_queue_attr_grp = { + .attrs = ep11_queue_attrs, +}; + +/* + * Probe function for CEX[45678] card device. It always + * accepts the AP device since the bus_match already checked + * the hardware type. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_cex4_card_probe(struct ap_device *ap_dev) +{ + /* + * Normalized speed ratings per crypto adapter + * MEX_1k, MEX_2k, MEX_4k, CRT_1k, CRT_2k, CRT_4k, RNG, SECKEY + */ + static const int CEX4A_SPEED_IDX[NUM_OPS] = { + 14, 19, 249, 42, 228, 1458, 0, 0}; + static const int CEX5A_SPEED_IDX[NUM_OPS] = { + 8, 9, 20, 18, 66, 458, 0, 0}; + static const int CEX6A_SPEED_IDX[NUM_OPS] = { + 6, 9, 20, 17, 65, 438, 0, 0}; + static const int CEX7A_SPEED_IDX[NUM_OPS] = { + 6, 8, 17, 15, 54, 362, 0, 0}; + static const int CEX8A_SPEED_IDX[NUM_OPS] = { + 6, 8, 17, 15, 54, 362, 0, 0}; + + static const int CEX4C_SPEED_IDX[NUM_OPS] = { + 59, 69, 308, 83, 278, 2204, 209, 40}; + static const int CEX5C_SPEED_IDX[] = { + 24, 31, 50, 37, 90, 479, 27, 10}; + static const int CEX6C_SPEED_IDX[NUM_OPS] = { + 16, 20, 32, 27, 77, 455, 24, 9}; + static const int CEX7C_SPEED_IDX[NUM_OPS] = { + 14, 16, 26, 23, 64, 376, 23, 8}; + static const int CEX8C_SPEED_IDX[NUM_OPS] = { + 14, 16, 26, 23, 64, 376, 23, 8}; + + static const int CEX4P_SPEED_IDX[NUM_OPS] = { + 0, 0, 0, 0, 0, 0, 0, 50}; + static const int CEX5P_SPEED_IDX[NUM_OPS] = { + 0, 0, 0, 0, 0, 0, 0, 10}; + static const int CEX6P_SPEED_IDX[NUM_OPS] = { + 0, 0, 0, 0, 0, 0, 0, 9}; + static const int CEX7P_SPEED_IDX[NUM_OPS] = { + 0, 0, 0, 0, 0, 0, 0, 8}; + static const int CEX8P_SPEED_IDX[NUM_OPS] = { + 0, 0, 0, 0, 0, 0, 0, 8}; + + struct ap_card *ac = to_ap_card(&ap_dev->device); + struct zcrypt_card *zc; + int rc = 0; + + zc = zcrypt_card_alloc(); + if (!zc) + return -ENOMEM; + zc->card = ac; + dev_set_drvdata(&ap_dev->device, zc); + if (ap_test_bit(&ac->functions, AP_FUNC_ACCEL)) { + if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { + zc->type_string = "CEX4A"; + zc->user_space_type = ZCRYPT_CEX4; + zc->speed_rating = CEX4A_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { + zc->type_string = "CEX5A"; + zc->user_space_type = ZCRYPT_CEX5; + zc->speed_rating = CEX5A_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { + zc->type_string = "CEX6A"; + zc->user_space_type = ZCRYPT_CEX6; + zc->speed_rating = CEX6A_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { + zc->type_string = "CEX7A"; + zc->speed_rating = CEX7A_SPEED_IDX; + /* wrong user space type, just for compatibility + * with the ZCRYPT_STATUS_MASK ioctl. + */ + zc->user_space_type = ZCRYPT_CEX6; + } else { + zc->type_string = "CEX8A"; + zc->speed_rating = CEX8A_SPEED_IDX; + /* wrong user space type, just for compatibility + * with the ZCRYPT_STATUS_MASK ioctl. + */ + zc->user_space_type = ZCRYPT_CEX6; + } + zc->min_mod_size = CEX4A_MIN_MOD_SIZE; + if (ap_test_bit(&ac->functions, AP_FUNC_MEX4K) && + ap_test_bit(&ac->functions, AP_FUNC_CRT4K)) { + zc->max_mod_size = CEX4A_MAX_MOD_SIZE_4K; + zc->max_exp_bit_length = + CEX4A_MAX_MOD_SIZE_4K; + } else { + zc->max_mod_size = CEX4A_MAX_MOD_SIZE_2K; + zc->max_exp_bit_length = + CEX4A_MAX_MOD_SIZE_2K; + } + } else if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) { + if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { + zc->type_string = "CEX4C"; + zc->speed_rating = CEX4C_SPEED_IDX; + /* wrong user space type, must be CEX3C + * just keep it for cca compatibility + */ + zc->user_space_type = ZCRYPT_CEX3C; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { + zc->type_string = "CEX5C"; + zc->speed_rating = CEX5C_SPEED_IDX; + /* wrong user space type, must be CEX3C + * just keep it for cca compatibility + */ + zc->user_space_type = ZCRYPT_CEX3C; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { + zc->type_string = "CEX6C"; + zc->speed_rating = CEX6C_SPEED_IDX; + /* wrong user space type, must be CEX3C + * just keep it for cca compatibility + */ + zc->user_space_type = ZCRYPT_CEX3C; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { + zc->type_string = "CEX7C"; + zc->speed_rating = CEX7C_SPEED_IDX; + /* wrong user space type, must be CEX3C + * just keep it for cca compatibility + */ + zc->user_space_type = ZCRYPT_CEX3C; + } else { + zc->type_string = "CEX8C"; + zc->speed_rating = CEX8C_SPEED_IDX; + /* wrong user space type, must be CEX3C + * just keep it for cca compatibility + */ + zc->user_space_type = ZCRYPT_CEX3C; + } + zc->min_mod_size = CEX4C_MIN_MOD_SIZE; + zc->max_mod_size = CEX4C_MAX_MOD_SIZE; + zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; + } else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) { + if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX4) { + zc->type_string = "CEX4P"; + zc->user_space_type = ZCRYPT_CEX4; + zc->speed_rating = CEX4P_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) { + zc->type_string = "CEX5P"; + zc->user_space_type = ZCRYPT_CEX5; + zc->speed_rating = CEX5P_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) { + zc->type_string = "CEX6P"; + zc->user_space_type = ZCRYPT_CEX6; + zc->speed_rating = CEX6P_SPEED_IDX; + } else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX7) { + zc->type_string = "CEX7P"; + zc->speed_rating = CEX7P_SPEED_IDX; + /* wrong user space type, just for compatibility + * with the ZCRYPT_STATUS_MASK ioctl. + */ + zc->user_space_type = ZCRYPT_CEX6; + } else { + zc->type_string = "CEX8P"; + zc->speed_rating = CEX8P_SPEED_IDX; + /* wrong user space type, just for compatibility + * with the ZCRYPT_STATUS_MASK ioctl. + */ + zc->user_space_type = ZCRYPT_CEX6; + } + zc->min_mod_size = CEX4C_MIN_MOD_SIZE; + zc->max_mod_size = CEX4C_MAX_MOD_SIZE; + zc->max_exp_bit_length = CEX4C_MAX_MOD_SIZE; + } else { + zcrypt_card_free(zc); + return -ENODEV; + } + zc->online = 1; + + rc = zcrypt_card_register(zc); + if (rc) { + zcrypt_card_free(zc); + return rc; + } + + if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) { + rc = sysfs_create_group(&ap_dev->device.kobj, + &cca_card_attr_grp); + if (rc) { + zcrypt_card_unregister(zc); + zcrypt_card_free(zc); + } + } else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) { + rc = sysfs_create_group(&ap_dev->device.kobj, + &ep11_card_attr_grp); + if (rc) { + zcrypt_card_unregister(zc); + zcrypt_card_free(zc); + } + } + + return rc; +} + +/* + * This is called to remove the CEX[45678] card driver + * information if an AP card device is removed. + */ +static void zcrypt_cex4_card_remove(struct ap_device *ap_dev) +{ + struct zcrypt_card *zc = dev_get_drvdata(&ap_dev->device); + struct ap_card *ac = to_ap_card(&ap_dev->device); + + if (ap_test_bit(&ac->functions, AP_FUNC_COPRO)) + sysfs_remove_group(&ap_dev->device.kobj, &cca_card_attr_grp); + else if (ap_test_bit(&ac->functions, AP_FUNC_EP11)) + sysfs_remove_group(&ap_dev->device.kobj, &ep11_card_attr_grp); + + zcrypt_card_unregister(zc); +} + +static struct ap_driver zcrypt_cex4_card_driver = { + .probe = zcrypt_cex4_card_probe, + .remove = zcrypt_cex4_card_remove, + .ids = zcrypt_cex4_card_ids, + .flags = AP_DRIVER_FLAG_DEFAULT, +}; + +/* + * Probe function for CEX[45678] queue device. It always + * accepts the AP device since the bus_match already checked + * the hardware type. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev) +{ + struct ap_queue *aq = to_ap_queue(&ap_dev->device); + struct zcrypt_queue *zq; + int rc; + + if (ap_test_bit(&aq->card->functions, AP_FUNC_ACCEL)) { + zq = zcrypt_queue_alloc(aq->card->maxmsgsize); + if (!zq) + return -ENOMEM; + zq->ops = zcrypt_msgtype(MSGTYPE50_NAME, + MSGTYPE50_VARIANT_DEFAULT); + } else if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) { + zq = zcrypt_queue_alloc(aq->card->maxmsgsize); + if (!zq) + return -ENOMEM; + zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, + MSGTYPE06_VARIANT_DEFAULT); + } else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) { + zq = zcrypt_queue_alloc(aq->card->maxmsgsize); + if (!zq) + return -ENOMEM; + zq->ops = zcrypt_msgtype(MSGTYPE06_NAME, + MSGTYPE06_VARIANT_EP11); + } else { + return -ENODEV; + } + + zq->queue = aq; + zq->online = 1; + atomic_set(&zq->load, 0); + ap_queue_init_state(aq); + ap_queue_init_reply(aq, &zq->reply); + aq->request_timeout = CEX4_CLEANUP_TIME; + dev_set_drvdata(&ap_dev->device, zq); + rc = zcrypt_queue_register(zq); + if (rc) { + zcrypt_queue_free(zq); + return rc; + } + + if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) { + rc = sysfs_create_group(&ap_dev->device.kobj, + &cca_queue_attr_grp); + if (rc) { + zcrypt_queue_unregister(zq); + zcrypt_queue_free(zq); + } + } else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) { + rc = sysfs_create_group(&ap_dev->device.kobj, + &ep11_queue_attr_grp); + if (rc) { + zcrypt_queue_unregister(zq); + zcrypt_queue_free(zq); + } + } + + return rc; +} + +/* + * This is called to remove the CEX[45678] queue driver + * information if an AP queue device is removed. + */ +static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev) +{ + struct zcrypt_queue *zq = dev_get_drvdata(&ap_dev->device); + struct ap_queue *aq = to_ap_queue(&ap_dev->device); + + if (ap_test_bit(&aq->card->functions, AP_FUNC_COPRO)) + sysfs_remove_group(&ap_dev->device.kobj, &cca_queue_attr_grp); + else if (ap_test_bit(&aq->card->functions, AP_FUNC_EP11)) + sysfs_remove_group(&ap_dev->device.kobj, &ep11_queue_attr_grp); + + zcrypt_queue_unregister(zq); +} + +static struct ap_driver zcrypt_cex4_queue_driver = { + .probe = zcrypt_cex4_queue_probe, + .remove = zcrypt_cex4_queue_remove, + .ids = zcrypt_cex4_queue_ids, + .flags = AP_DRIVER_FLAG_DEFAULT, +}; + +int __init zcrypt_cex4_init(void) +{ + int rc; + + rc = ap_driver_register(&zcrypt_cex4_card_driver, + THIS_MODULE, "cex4card"); + if (rc) + return rc; + + rc = ap_driver_register(&zcrypt_cex4_queue_driver, + THIS_MODULE, "cex4queue"); + if (rc) + ap_driver_unregister(&zcrypt_cex4_card_driver); + + return rc; +} + +void __exit zcrypt_cex4_exit(void) +{ + ap_driver_unregister(&zcrypt_cex4_queue_driver); + ap_driver_unregister(&zcrypt_cex4_card_driver); +} + +module_init(zcrypt_cex4_init); +module_exit(zcrypt_cex4_exit); |