1 files changed, 0 insertions, 421 deletions

diff --git a/drivers/s390/crypto/zcrypt_cex2c.c b/drivers/s390/crypto/zcrypt_cex2c.c
index 251b5bd3d19c..e69de29bb2d1 100644
--- a/drivers/s390/crypto/zcrypt_cex2c.c
+++ b/drivers/s390/crypto/zcrypt_cex2c.c
@@ -1,421 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- *  Copyright IBM Corp. 2001, 2018
- *  Author(s): Robert Burroughs
- *	       Eric Rossman (edrossma@us.ibm.com)
- *
- *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
- *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
- *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
- *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/atomic.h>
-#include <linux/uaccess.h>
-#include <linux/mod_devicetable.h>
-
-#include "ap_bus.h"
-#include "zcrypt_api.h"
-#include "zcrypt_error.h"
-#include "zcrypt_msgtype6.h"
-#include "zcrypt_cex2c.h"
-#include "zcrypt_cca_key.h"
-#include "zcrypt_ccamisc.h"
-
-#define CEX2C_MIN_MOD_SIZE	 16	/*  128 bits	*/
-#define CEX2C_MAX_MOD_SIZE	256	/* 2048 bits	*/
-#define CEX3C_MIN_MOD_SIZE	 16	/*  128 bits	*/
-#define CEX3C_MAX_MOD_SIZE	512	/* 4096 bits	*/
-#define CEX2C_MAX_XCRB_MESSAGE_SIZE (12 * 1024)
-#define CEX2C_CLEANUP_TIME	(15 * HZ)
-
-MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("CEX2C/CEX3C Cryptographic Coprocessor device driver, " \
-		   "Copyright IBM Corp. 2001, 2018");
-MODULE_LICENSE("GPL");
-
-static struct ap_device_id zcrypt_cex2c_card_ids[] = {
-	{ .dev_type = AP_DEVICE_TYPE_CEX2C,
-	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
-	{ .dev_type = AP_DEVICE_TYPE_CEX3C,
-	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
-	{ /* end of list */ },
-};
-
-MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_card_ids);
-
-static struct ap_device_id zcrypt_cex2c_queue_ids[] = {
-	{ .dev_type = AP_DEVICE_TYPE_CEX2C,
-	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
-	{ .dev_type = AP_DEVICE_TYPE_CEX3C,
-	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
-	{ /* end of list */ },
-};
-
-MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_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 sysfs_emit(buf, "%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 = sysfs_emit(buf, "AES NEW: %s 0x%016llx\n",
-			       new_state[ci.new_aes_mk_state - '1'],
-			       ci.new_aes_mkvp);
-	else
-		n = sysfs_emit(buf, "AES NEW: - -\n");
-
-	if (ci.cur_aes_mk_state >= '1' && ci.cur_aes_mk_state <= '2')
-		n += sysfs_emit_at(buf, n, "AES CUR: %s 0x%016llx\n",
-				   cao_state[ci.cur_aes_mk_state - '1'],
-				   ci.cur_aes_mkvp);
-	else
-		n += sysfs_emit_at(buf, n, "AES CUR: - -\n");
-
-	if (ci.old_aes_mk_state >= '1' && ci.old_aes_mk_state <= '2')
-		n += sysfs_emit_at(buf, n, "AES OLD: %s 0x%016llx\n",
-				   cao_state[ci.old_aes_mk_state - '1'],
-				   ci.old_aes_mkvp);
-	else
-		n += sysfs_emit_at(buf, n, "AES OLD: - -\n");
-
-	if (ci.new_apka_mk_state >= '1' && ci.new_apka_mk_state <= '3')
-		n += sysfs_emit_at(buf, n, "APKA NEW: %s 0x%016llx\n",
-				   new_state[ci.new_apka_mk_state - '1'],
-				   ci.new_apka_mkvp);
-	else
-		n += sysfs_emit_at(buf, n, "APKA NEW: - -\n");
-
-	if (ci.cur_apka_mk_state >= '1' && ci.cur_apka_mk_state <= '2')
-		n += sysfs_emit_at(buf, n, "APKA CUR: %s 0x%016llx\n",
-				   cao_state[ci.cur_apka_mk_state - '1'],
-				   ci.cur_apka_mkvp);
-	else
-		n += sysfs_emit_at(buf, n, "APKA CUR: - -\n");
-
-	if (ci.old_apka_mk_state >= '1' && ci.old_apka_mk_state <= '2')
-		n += sysfs_emit_at(buf, n, "APKA OLD: %s 0x%016llx\n",
-				   cao_state[ci.old_apka_mk_state - '1'],
-				   ci.old_apka_mkvp);
-	else
-		n += sysfs_emit_at(buf, n, "APKA 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,
-};
-
-/*
- * Large random number detection function. Its sends a message to a CEX2C/CEX3C
- * card to find out if large random numbers are supported.
- * @ap_dev: pointer to the AP device.
- *
- * Returns 1 if large random numbers are supported, 0 if not and < 0 on error.
- */
-static int zcrypt_cex2c_rng_supported(struct ap_queue *aq)
-{
-	struct ap_message ap_msg;
-	unsigned long psmid;
-	unsigned int domain;
-	struct {
-		struct type86_hdr hdr;
-		struct type86_fmt2_ext fmt2;
-		struct CPRBX cprbx;
-	} __packed *reply;
-	struct {
-		struct type6_hdr hdr;
-		struct CPRBX cprbx;
-		char function_code[2];
-		short int rule_length;
-		char rule[8];
-		short int verb_length;
-		short int key_length;
-	} __packed *msg;
-	int rc, i;
-
-	ap_init_message(&ap_msg);
-	ap_msg.msg = (void *)get_zeroed_page(GFP_KERNEL);
-	if (!ap_msg.msg)
-		return -ENOMEM;
-	ap_msg.bufsize = PAGE_SIZE;
-
-	rng_type6cprb_msgx(&ap_msg, 4, &domain);
-
-	msg = ap_msg.msg;
-	msg->cprbx.domain = AP_QID_QUEUE(aq->qid);
-
-	rc = ap_send(aq->qid, 0x0102030405060708UL, ap_msg.msg, ap_msg.len);
-	if (rc)
-		goto out_free;
-
-	/* Wait for the test message to complete. */
-	for (i = 0; i < 2 * HZ; i++) {
-		msleep(1000 / HZ);
-		rc = ap_recv(aq->qid, &psmid, ap_msg.msg, ap_msg.bufsize);
-		if (rc == 0 && psmid == 0x0102030405060708UL)
-			break;
-	}
-
-	if (i >= 2 * HZ) {
-		/* Got no answer. */
-		rc = -ENODEV;
-		goto out_free;
-	}
-
-	reply = ap_msg.msg;
-	if (reply->cprbx.ccp_rtcode == 0 && reply->cprbx.ccp_rscode == 0)
-		rc = 1;
-	else
-		rc = 0;
-out_free:
-	free_page((unsigned long)ap_msg.msg);
-	return rc;
-}
-
-/*
- * Probe function for CEX2C/CEX3C card devices. It always accepts the
- * AP device since the bus_match already checked the hardware type.
- * @ap_dev: pointer to the AP card device.
- */
-static int zcrypt_cex2c_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 CEX2C_SPEED_IDX[] = {
-		1000, 1400, 2400, 1100, 1500, 2600, 100, 12};
-	static const int CEX3C_SPEED_IDX[] = {
-		500,  700, 1400,  550,	800, 1500,  80, 10};
-
-	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);
-	switch (ac->ap_dev.device_type) {
-	case AP_DEVICE_TYPE_CEX2C:
-		zc->user_space_type = ZCRYPT_CEX2C;
-		zc->type_string = "CEX2C";
-		zc->speed_rating = CEX2C_SPEED_IDX;
-		zc->min_mod_size = CEX2C_MIN_MOD_SIZE;
-		zc->max_mod_size = CEX2C_MAX_MOD_SIZE;
-		zc->max_exp_bit_length = CEX2C_MAX_MOD_SIZE;
-		break;
-	case AP_DEVICE_TYPE_CEX3C:
-		zc->user_space_type = ZCRYPT_CEX3C;
-		zc->type_string = "CEX3C";
-		zc->speed_rating = CEX3C_SPEED_IDX;
-		zc->min_mod_size = CEX3C_MIN_MOD_SIZE;
-		zc->max_mod_size = CEX3C_MAX_MOD_SIZE;
-		zc->max_exp_bit_length = CEX3C_MAX_MOD_SIZE;
-		break;
-	default:
-		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);
-		}
-	}
-
-	return rc;
-}
-
-/*
- * This is called to remove the CEX2C/CEX3C card driver information
- * if an AP card device is removed.
- */
-static void zcrypt_cex2c_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);
-
-	zcrypt_card_unregister(zc);
-}
-
-static struct ap_driver zcrypt_cex2c_card_driver = {
-	.probe = zcrypt_cex2c_card_probe,
-	.remove = zcrypt_cex2c_card_remove,
-	.ids = zcrypt_cex2c_card_ids,
-	.flags = AP_DRIVER_FLAG_DEFAULT,
-};
-
-/*
- * Probe function for CEX2C/CEX3C queue devices. It always accepts the
- * AP device since the bus_match already checked the hardware type.
- * @ap_dev: pointer to the AP card device.
- */
-static int zcrypt_cex2c_queue_probe(struct ap_device *ap_dev)
-{
-	struct ap_queue *aq = to_ap_queue(&ap_dev->device);
-	struct zcrypt_queue *zq;
-	int rc;
-
-	zq = zcrypt_queue_alloc(CEX2C_MAX_XCRB_MESSAGE_SIZE);
-	if (!zq)
-		return -ENOMEM;
-	zq->queue = aq;
-	zq->online = 1;
-	atomic_set(&zq->load, 0);
-	ap_rapq(aq->qid, 0);
-	rc = zcrypt_cex2c_rng_supported(aq);
-	if (rc < 0) {
-		zcrypt_queue_free(zq);
-		return rc;
-	}
-	if (rc)
-		zq->ops = zcrypt_msgtype(MSGTYPE06_NAME,
-					 MSGTYPE06_VARIANT_DEFAULT);
-	else
-		zq->ops = zcrypt_msgtype(MSGTYPE06_NAME,
-					 MSGTYPE06_VARIANT_NORNG);
-	ap_queue_init_state(aq);
-	ap_queue_init_reply(aq, &zq->reply);
-	aq->request_timeout = CEX2C_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);
-		}
-	}
-
-	return rc;
-}
-
-/*
- * This is called to remove the CEX2C/CEX3C queue driver information
- * if an AP queue device is removed.
- */
-static void zcrypt_cex2c_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);
-
-	zcrypt_queue_unregister(zq);
-}
-
-static struct ap_driver zcrypt_cex2c_queue_driver = {
-	.probe = zcrypt_cex2c_queue_probe,
-	.remove = zcrypt_cex2c_queue_remove,
-	.ids = zcrypt_cex2c_queue_ids,
-	.flags = AP_DRIVER_FLAG_DEFAULT,
-};
-
-int __init zcrypt_cex2c_init(void)
-{
-	int rc;
-
-	rc = ap_driver_register(&zcrypt_cex2c_card_driver,
-				THIS_MODULE, "cex2card");
-	if (rc)
-		return rc;
-
-	rc = ap_driver_register(&zcrypt_cex2c_queue_driver,
-				THIS_MODULE, "cex2cqueue");
-	if (rc)
-		ap_driver_unregister(&zcrypt_cex2c_card_driver);
-
-	return rc;
-}
-
-void zcrypt_cex2c_exit(void)
-{
-	ap_driver_unregister(&zcrypt_cex2c_queue_driver);
-	ap_driver_unregister(&zcrypt_cex2c_card_driver);
-}
-
-module_init(zcrypt_cex2c_init);
-module_exit(zcrypt_cex2c_exit);