s390/zcrypt: zcrypt device driver cleanup

Some cleanup in the s390 zcrypt device driver:
- Removed fragments of pcixx crypto card code. This code
  can't be reached anymore because the hardware detection
  function does not recognize crypto cards < CEX2 since
  commit f56545430736 ("s390/zcrypt: Introduce QACT support
  for AP bus devices.")
- Rename of some files and driver names which where still
  reflecting pcixx support to cex2a/cex2c.
- Removed all the zcrypt version strings in the file headers.
  There is only one place left - the zcrypt.h header file is
  now the only place for zcrypt device driver version info.
- Zcrypt version pump up from 2.2.0 to 2.2.1.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/uapi/asm/zcrypt.h

@@ -2,7 +2,7 @@
 /*
  *  include/asm-s390/zcrypt.h
  *
- *  zcrypt 2.2.0 (user-visible header)
+ *  zcrypt 2.2.1 (user-visible header)
  *
  *  Copyright IBM Corp. 2001, 2018
  *  Author(s): Robert Burroughs
@@ -16,7 +16,7 @@
 
 #define ZCRYPT_VERSION 2
 #define ZCRYPT_RELEASE 2
-#define ZCRYPT_VARIANT 0
+#define ZCRYPT_VARIANT 1
 
 #include <linux/ioctl.h>
 #include <linux/compiler.h>

drivers/s390/crypto/Makefile

@@ -10,7 +10,7 @@ zcrypt-objs := zcrypt_api.o zcrypt_card.o zcrypt_queue.o
 zcrypt-objs += zcrypt_msgtype6.o zcrypt_msgtype50.o
 obj-$(CONFIG_ZCRYPT) += zcrypt.o
 # adapter drivers depend on ap.o and zcrypt.o
-obj-$(CONFIG_ZCRYPT) += zcrypt_pcixcc.o zcrypt_cex2a.o zcrypt_cex4.o
+obj-$(CONFIG_ZCRYPT) += zcrypt_cex2c.o zcrypt_cex2a.o zcrypt_cex4.o
 
 # pkey kernel module
 pkey-objs := pkey_api.o

drivers/s390/crypto/zcrypt_api.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.2.0
- *
  *  Copyright IBM Corp. 2001, 2018
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)

drivers/s390/crypto/zcrypt_api.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
- *  Copyright IBM Corp. 2001, 2012
+ *  Copyright IBM Corp. 2001, 2018
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *	       Cornelia Huck <cornelia.huck@de.ibm.com>
@@ -22,17 +20,8 @@
 #include "ap_bus.h"
 
 /**
- * device type for an actual device is either PCICA, PCICC, PCIXCC_MCL2,
- * PCIXCC_MCL3, CEX2C, or CEX2A
- *
- * NOTE: PCIXCC_MCL3 refers to a PCIXCC with May 2004 version of Licensed
- *	 Internal Code (LIC) (EC J12220 level 29).
- *	 PCIXCC_MCL2 refers to any LIC before this level.
+ * Supported device types
  */
-#define ZCRYPT_PCICA		1
-#define ZCRYPT_PCICC		2
-#define ZCRYPT_PCIXCC_MCL2	3
-#define ZCRYPT_PCIXCC_MCL3	4
 #define ZCRYPT_CEX2C		5
 #define ZCRYPT_CEX2A		6
 #define ZCRYPT_CEX3C		7

drivers/s390/crypto/zcrypt_card.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)

drivers/s390/crypto/zcrypt_cca_key.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2006
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)

drivers/s390/crypto/zcrypt_cex2a.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
@@ -43,8 +41,8 @@
 #define CEX3A_CLEANUP_TIME	CEX2A_CLEANUP_TIME
 
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " \
-		   "Copyright IBM Corp. 2001, 2012");
+MODULE_DESCRIPTION("CEX2A/CEX3A Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2018");
 MODULE_LICENSE("GPL");
 
 static struct ap_device_id zcrypt_cex2a_card_ids[] = {

drivers/s390/crypto/zcrypt_cex2a.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2006
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
@@ -14,7 +12,7 @@
 #define _ZCRYPT_CEX2A_H_
 
 /**
- * The type 50 message family is associated with a CEX2A card.
+ * The type 50 message family is associated with CEXxA cards.
  *
  * The four members of the family are described below.
  *
@@ -111,7 +109,7 @@ struct type50_crb3_msg {
 } __packed;
 
 /**
- * The type 80 response family is associated with a CEX2A card.
+ * The type 80 response family is associated with a CEXxA cards.
  *
  * Note that all unsigned char arrays are right-justified and left-padded
  * with zeroes.

drivers/s390/crypto/zcrypt_pcixcc.c → drivers/s390/crypto/zcrypt_cex2c.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
- *  Copyright IBM Corp. 2001, 2012
+ *  Copyright IBM Corp. 2001, 2018
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *
@@ -25,39 +23,22 @@
 #include "zcrypt_api.h"
 #include "zcrypt_error.h"
 #include "zcrypt_msgtype6.h"
-#include "zcrypt_pcixcc.h"
+#include "zcrypt_cex2c.h"
 #include "zcrypt_cca_key.h"
 
-#define PCIXCC_MIN_MOD_SIZE	 16	/*  128 bits	*/
-#define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
-#define PCIXCC_MAX_MOD_SIZE	256	/* 2048 bits	*/
-#define CEX3C_MIN_MOD_SIZE	PCIXCC_MIN_MOD_SIZE
+#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 PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c  /* max size type6 v2 crt message */
-#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
-
-#define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024)
-
-#define PCIXCC_CLEANUP_TIME	(15*HZ)
-
-#define CEIL4(x) ((((x)+3)/4)*4)
-
-struct response_type {
-	struct completion work;
-	int type;
-};
-#define PCIXCC_RESPONSE_TYPE_ICA  0
-#define PCIXCC_RESPONSE_TYPE_XCRB 1
+#define CEX2C_MAX_XCRB_MESSAGE_SIZE (12*1024)
+#define CEX2C_CLEANUP_TIME	(15*HZ)
 
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " \
-		   "Copyright IBM Corp. 2001, 2012");
+MODULE_DESCRIPTION("CEX2C/CEX3C Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2018");
 MODULE_LICENSE("GPL");
 
-static struct ap_device_id zcrypt_pcixcc_card_ids[] = {
-	{ .dev_type = AP_DEVICE_TYPE_PCIXCC,
-	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
+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,
@@ -65,11 +46,9 @@ static struct ap_device_id zcrypt_pcixcc_card_ids[] = {
 	{ /* end of list */ },
 };
 
-MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_card_ids);
+MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_card_ids);
 
-static struct ap_device_id zcrypt_pcixcc_queue_ids[] = {
-	{ .dev_type = AP_DEVICE_TYPE_PCIXCC,
-	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
+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,
@@ -77,16 +56,16 @@ static struct ap_device_id zcrypt_pcixcc_queue_ids[] = {
 	{ /* end of list */ },
 };
 
-MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_queue_ids);
+MODULE_DEVICE_TABLE(ap, zcrypt_cex2c_queue_ids);
 
 /**
- * Large random number detection function. Its sends a message to a pcixcc
+ * 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_pcixcc_rng_supported(struct ap_queue *aq)
+static int zcrypt_cex2c_rng_supported(struct ap_queue *aq)
 {
 	struct ap_message ap_msg;
 	unsigned long long psmid;
@@ -147,13 +126,11 @@ static int zcrypt_pcixcc_rng_supported(struct ap_queue *aq)
 }
 
 /**
- * Probe function for PCIXCC/CEX2C card devices. It always accepts the
- * AP device since the bus_match already checked the hardware type. The
- * PCIXCC cards come in two flavours: micro code level 2 and micro code
- * level 3. This is checked by sending a test message to the device.
+ * 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_pcixcc_card_probe(struct ap_device *ap_dev)
+static int zcrypt_cex2c_card_probe(struct ap_device *ap_dev)
 {
 	/*
 	 * Normalized speed ratings per crypto adapter
@@ -179,9 +156,9 @@ static int zcrypt_pcixcc_card_probe(struct ap_device *ap_dev)
 		zc->type_string = "CEX2C";
 		memcpy(zc->speed_rating, CEX2C_SPEED_IDX,
 		       sizeof(CEX2C_SPEED_IDX));
-		zc->min_mod_size = PCIXCC_MIN_MOD_SIZE;
-		zc->max_mod_size = PCIXCC_MAX_MOD_SIZE;
-		zc->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
+		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;
@@ -208,10 +185,10 @@ static int zcrypt_pcixcc_card_probe(struct ap_device *ap_dev)
 }
 
 /**
- * This is called to remove the PCIXCC/CEX2C card driver information
+ * This is called to remove the CEX2C/CEX3C card driver information
  * if an AP card device is removed.
  */
-static void zcrypt_pcixcc_card_remove(struct ap_device *ap_dev)
+static void zcrypt_cex2c_card_remove(struct ap_device *ap_dev)
 {
 	struct zcrypt_card *zc = to_ap_card(&ap_dev->device)->private;
 
@@ -219,33 +196,31 @@ static void zcrypt_pcixcc_card_remove(struct ap_device *ap_dev)
 		zcrypt_card_unregister(zc);
 }
 
-static struct ap_driver zcrypt_pcixcc_card_driver = {
-	.probe = zcrypt_pcixcc_card_probe,
-	.remove = zcrypt_pcixcc_card_remove,
-	.ids = zcrypt_pcixcc_card_ids,
+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 PCIXCC/CEX2C queue devices. It always accepts the
- * AP device since the bus_match already checked the hardware type. The
- * PCIXCC cards come in two flavours: micro code level 2 and micro code
- * level 3. This is checked by sending a test message to the device.
+ * 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_pcixcc_queue_probe(struct ap_device *ap_dev)
+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(PCIXCC_MAX_XCRB_MESSAGE_SIZE);
+	zq = zcrypt_queue_alloc(CEX2C_MAX_XCRB_MESSAGE_SIZE);
 	if (!zq)
 		return -ENOMEM;
 	zq->queue = aq;
 	zq->online = 1;
 	atomic_set(&zq->load, 0);
-	rc = zcrypt_pcixcc_rng_supported(aq);
+	rc = zcrypt_cex2c_rng_supported(aq);
 	if (rc < 0) {
 		zcrypt_queue_free(zq);
 		return rc;
@@ -257,7 +232,7 @@ static int zcrypt_pcixcc_queue_probe(struct ap_device *ap_dev)
 		zq->ops = zcrypt_msgtype(MSGTYPE06_NAME,
 					 MSGTYPE06_VARIANT_NORNG);
 	ap_queue_init_reply(aq, &zq->reply);
-	aq->request_timeout = PCIXCC_CLEANUP_TIME,
+	aq->request_timeout = CEX2C_CLEANUP_TIME;
 	aq->private = zq;
 	rc = zcrypt_queue_register(zq);
 	if (rc) {
@@ -268,10 +243,10 @@ static int zcrypt_pcixcc_queue_probe(struct ap_device *ap_dev)
 }
 
 /**
- * This is called to remove the PCIXCC/CEX2C queue driver information
+ * This is called to remove the CEX2C/CEX3C queue driver information
  * if an AP queue device is removed.
  */
-static void zcrypt_pcixcc_queue_remove(struct ap_device *ap_dev)
+static void zcrypt_cex2c_queue_remove(struct ap_device *ap_dev)
 {
 	struct ap_queue *aq = to_ap_queue(&ap_dev->device);
 	struct zcrypt_queue *zq = aq->private;
@@ -281,37 +256,37 @@ static void zcrypt_pcixcc_queue_remove(struct ap_device *ap_dev)
 		zcrypt_queue_unregister(zq);
 }
 
-static struct ap_driver zcrypt_pcixcc_queue_driver = {
-	.probe = zcrypt_pcixcc_queue_probe,
-	.remove = zcrypt_pcixcc_queue_remove,
+static struct ap_driver zcrypt_cex2c_queue_driver = {
+	.probe = zcrypt_cex2c_queue_probe,
+	.remove = zcrypt_cex2c_queue_remove,
 	.suspend = ap_queue_suspend,
 	.resume = ap_queue_resume,
-	.ids = zcrypt_pcixcc_queue_ids,
+	.ids = zcrypt_cex2c_queue_ids,
 	.flags = AP_DRIVER_FLAG_DEFAULT,
 };
 
-int __init zcrypt_pcixcc_init(void)
+int __init zcrypt_cex2c_init(void)
 {
 	int rc;
 
-	rc = ap_driver_register(&zcrypt_pcixcc_card_driver,
-				THIS_MODULE, "pcixcccard");
+	rc = ap_driver_register(&zcrypt_cex2c_card_driver,
+				THIS_MODULE, "cex2card");
 	if (rc)
 		return rc;
 
-	rc = ap_driver_register(&zcrypt_pcixcc_queue_driver,
-				THIS_MODULE, "pcixccqueue");
+	rc = ap_driver_register(&zcrypt_cex2c_queue_driver,
+				THIS_MODULE, "cex2cqueue");
 	if (rc)
-		ap_driver_unregister(&zcrypt_pcixcc_card_driver);
+		ap_driver_unregister(&zcrypt_cex2c_card_driver);
 
 	return rc;
 }
 
-void zcrypt_pcixcc_exit(void)
+void zcrypt_cex2c_exit(void)
 {
-	ap_driver_unregister(&zcrypt_pcixcc_queue_driver);
-	ap_driver_unregister(&zcrypt_pcixcc_card_driver);
+	ap_driver_unregister(&zcrypt_cex2c_queue_driver);
+	ap_driver_unregister(&zcrypt_cex2c_card_driver);
 }
 
-module_init(zcrypt_pcixcc_init);
-module_exit(zcrypt_pcixcc_exit);
+module_init(zcrypt_cex2c_init);
+module_exit(zcrypt_cex2c_exit);

drivers/s390/crypto/zcrypt_pcixcc.h → drivers/s390/crypto/zcrypt_cex2c.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
- *  Copyright IBM Corp. 2001, 2012
+ *  Copyright IBM Corp. 2001, 2018
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *
@@ -11,10 +9,10 @@
  *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  */
 
-#ifndef _ZCRYPT_PCIXCC_H_
-#define _ZCRYPT_PCIXCC_H_
+#ifndef _ZCRYPT_CEX2C_H_
+#define _ZCRYPT_CEX2C_H_
 
-int zcrypt_pcixcc_init(void);
-void zcrypt_pcixcc_exit(void);
+int zcrypt_cex2c_init(void);
+void zcrypt_cex2c_exit(void);
 
-#endif /* _ZCRYPT_PCIXCC_H_ */
+#endif /* _ZCRYPT_CEX2C_H_ */

drivers/s390/crypto/zcrypt_cex4.c

@@ -37,8 +37,8 @@
 #define CEX4_CLEANUP_TIME	(900*HZ)
 
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("CEX4 Cryptographic Card device driver, " \
-		   "Copyright IBM Corp. 2012");
+MODULE_DESCRIPTION("CEX4/CEX5/CEX6 Cryptographic Card device driver, " \
+		   "Copyright IBM Corp. 2018");
 MODULE_LICENSE("GPL");
 
 static struct ap_device_id zcrypt_cex4_card_ids[] = {
@@ -66,8 +66,9 @@ static struct ap_device_id zcrypt_cex4_queue_ids[] = {
 MODULE_DEVICE_TABLE(ap, zcrypt_cex4_queue_ids);
 
 /**
- * Probe function for CEX4 card device. It always accepts the AP device
- * since the bus_match already checked the hardware type.
+ * Probe function for CEX4/CEX5/CEX6 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)
@@ -199,7 +200,7 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 }
 
 /**
- * This is called to remove the CEX4 card driver information
+ * This is called to remove the CEX4/CEX5/CEX6 card driver information
  * if an AP card device is removed.
  */
 static void zcrypt_cex4_card_remove(struct ap_device *ap_dev)
@@ -218,8 +219,9 @@ static struct ap_driver zcrypt_cex4_card_driver = {
 };
 
 /**
- * Probe function for CEX4 queue device. It always accepts the AP device
- * since the bus_match already checked the hardware type.
+ * Probe function for CEX4/CEX5/CEX6 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)
@@ -265,8 +267,8 @@ static int zcrypt_cex4_queue_probe(struct ap_device *ap_dev)
 }
 
 /**
- * This is called to remove the CEX4 queue driver information
- * if an AP queue device is removed.
+ * This is called to remove the CEX4/CEX5/CEX6 queue driver
+ * information if an AP queue device is removed.
  */
 static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev)
 {

drivers/s390/crypto/zcrypt_error.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2006
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)

drivers/s390/crypto/zcrypt_msgtype50.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
@@ -27,13 +25,13 @@
 #include "zcrypt_error.h"
 #include "zcrypt_msgtype50.h"
 
-/* 4096 bits */
+/* >= CEX3A: 4096 bits */
 #define CEX3A_MAX_MOD_SIZE 512
 
-/* max outputdatalength + type80_hdr */
+/* CEX2A: max outputdatalength + type80_hdr */
 #define CEX2A_MAX_RESPONSE_SIZE 0x110
 
-/* 512 bit modulus, (max outputdatalength) + type80_hdr */
+/* >= CEX3A: 512 bit modulus, (max outputdatalength) + type80_hdr */
 #define CEX3A_MAX_RESPONSE_SIZE 0x210
 
 MODULE_AUTHOR("IBM Corporation");
@@ -42,7 +40,7 @@ MODULE_DESCRIPTION("Cryptographic Accelerator (message type 50), " \
 MODULE_LICENSE("GPL");
 
 /**
- * The type 50 message family is associated with a CEX2A card.
+ * The type 50 message family is associated with a CEXxA cards.
  *
  * The four members of the family are described below.
  *
@@ -139,7 +137,7 @@ struct type50_crb3_msg {
 } __packed;
 
 /**
- * The type 80 response family is associated with a CEX2A card.
+ * The type 80 response family is associated with a CEXxA cards.
  *
  * Note that all unsigned char arrays are right-justified and left-padded
  * with zeroes.
@@ -273,7 +271,7 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_queue *zq,
 	/*
 	 * CEX2A and CEX3A w/o FW update can handle requests up to
 	 * 256 byte modulus (2k keys).
-	 * CEX3A with FW update and CEX4A cards are able to handle
+	 * CEX3A with FW update and newer CEXxA cards are able to handle
 	 * 512 byte modulus (4k keys).
 	 */
 	if (mod_len <= 128) {		/* up to 1024 bit key size */
@@ -356,7 +354,7 @@ static int convert_type80(struct zcrypt_queue *zq,
 	unsigned char *data;
 
 	if (t80h->len < sizeof(*t80h) + outputdatalength) {
-		/* The result is too short, the CEX2A card may not do that.. */
+		/* The result is too short, the CEXxA card may not do that.. */
 		zq->online = 0;
 		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
 		       AP_QID_CARD(zq->queue->qid),
@@ -447,10 +445,10 @@ static void zcrypt_cex2a_receive(struct ap_queue *aq,
 static atomic_t zcrypt_step = ATOMIC_INIT(0);
 
 /**
- * The request distributor calls this function if it picked the CEX2A
+ * The request distributor calls this function if it picked the CEXxA
  * device to handle a modexpo request.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  CEX2A device to the request distributor
+ *	CEXxA device to the request distributor
  * @mex: pointer to the modexpo request buffer
  */
 static long zcrypt_cex2a_modexpo(struct zcrypt_queue *zq,
@@ -493,10 +491,10 @@ static long zcrypt_cex2a_modexpo(struct zcrypt_queue *zq,
 }
 
 /**
- * The request distributor calls this function if it picked the CEX2A
+ * The request distributor calls this function if it picked the CEXxA
  * device to handle a modexpo_crt request.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  CEX2A device to the request distributor
+ *	CEXxA device to the request distributor
  * @crt: pointer to the modexpoc_crt request buffer
  */
 static long zcrypt_cex2a_modexpo_crt(struct zcrypt_queue *zq,

drivers/s390/crypto/zcrypt_msgtype50.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)

drivers/s390/crypto/zcrypt_msgtype6.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
@@ -29,8 +27,7 @@
 #include "zcrypt_msgtype6.h"
 #include "zcrypt_cca_key.h"
 
-#define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
-#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
+#define CEXXC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
 
 #define CEIL4(x) ((((x)+3)/4)*4)
 
@@ -38,9 +35,9 @@ struct response_type {
 	struct completion work;
 	int type;
 };
-#define PCIXCC_RESPONSE_TYPE_ICA  0
-#define PCIXCC_RESPONSE_TYPE_XCRB 1
-#define PCIXCC_RESPONSE_TYPE_EP11 2
+#define CEXXC_RESPONSE_TYPE_ICA  0
+#define CEXXC_RESPONSE_TYPE_XCRB 1
+#define CEXXC_RESPONSE_TYPE_EP11 2
 
 MODULE_AUTHOR("IBM Corporation");
 MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \
@@ -111,7 +108,7 @@ struct function_and_rules_block {
 } __packed;
 
 /**
- * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
+ * The following is used to initialize the CPRBX passed to the CEXxC/CEXxP
  * card in a type6 message. The 3 fields that must be filled in at execution
  * time are  req_parml, rpl_parml and usage_domain.
  * Everything about this interface is ascii/big-endian, since the
@@ -294,7 +291,7 @@ static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_queue *zq,
 	/* message header, cprbx and f&r */
 	msg->hdr = static_type6_hdrX;
 	msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
-	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = CEXXC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
 
 	msg->cprbx = static_cprbx;
 	msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid);
@@ -364,7 +361,7 @@ static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_queue *zq,
 	/* message header, cprbx and f&r */
 	msg->hdr = static_type6_hdrX;
 	msg->hdr.ToCardLen1 = size -  sizeof(msg->hdr);
-	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = CEXXC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
 
 	msg->cprbx = static_cprbx;
 	msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid);
@@ -658,16 +655,6 @@ static int convert_type86_ica(struct zcrypt_queue *zq,
 				   (int) service_rc, (int) service_rs);
 			return -EINVAL;
 		}
-		if (service_rc == 8 && service_rs == 783) {
-			zq->zcard->min_mod_size =
-				PCIXCC_MIN_MOD_SIZE_OLD;
-			ZCRYPT_DBF(DBF_DEBUG,
-				   "device=%02x.%04x rc/rs=%d/%d => rc=EAGAIN\n",
-				   AP_QID_CARD(zq->queue->qid),
-				   AP_QID_QUEUE(zq->queue->qid),
-				   (int) service_rc, (int) service_rs);
-			return -EAGAIN;
-		}
 		zq->online = 0;
 		pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
 		       AP_QID_CARD(zq->queue->qid),
@@ -697,7 +684,7 @@ static int convert_type86_ica(struct zcrypt_queue *zq,
 	if (pad_len > 0) {
 		if (pad_len < 10)
 			return -EINVAL;
-		/* 'restore' padding left in the PCICC/PCIXCC card. */
+		/* 'restore' padding left in the CEXXC card. */
 		if (copy_to_user(outputdata, static_pad, pad_len - 1))
 			return -EFAULT;
 		if (put_user(0, outputdata + pad_len - 1))
@@ -955,13 +942,13 @@ static void zcrypt_msgtype6_receive(struct ap_queue *aq,
 	if (t86r->hdr.type == TYPE86_RSP_CODE &&
 		 t86r->cprbx.cprb_ver_id == 0x02) {
 		switch (resp_type->type) {
-		case PCIXCC_RESPONSE_TYPE_ICA:
+		case CEXXC_RESPONSE_TYPE_ICA:
 			length = sizeof(struct type86x_reply)
 				+ t86r->length - 2;
-			length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length);
+			length = min(CEXXC_MAX_ICA_RESPONSE_SIZE, length);
 			memcpy(msg->message, reply->message, length);
 			break;
-		case PCIXCC_RESPONSE_TYPE_XCRB:
+		case CEXXC_RESPONSE_TYPE_XCRB:
 			length = t86r->fmt2.offset2 + t86r->fmt2.count2;
 			length = min(MSGTYPE06_MAX_MSG_SIZE, length);
 			memcpy(msg->message, reply->message, length);
@@ -1004,7 +991,7 @@ static void zcrypt_msgtype6_receive_ep11(struct ap_queue *aq,
 	if (t86r->hdr.type == TYPE86_RSP_CODE &&
 	    t86r->cprbx.cprb_ver_id == 0x04) {
 		switch (resp_type->type) {
-		case PCIXCC_RESPONSE_TYPE_EP11:
+		case CEXXC_RESPONSE_TYPE_EP11:
 			length = t86r->fmt2.offset1 + t86r->fmt2.count1;
 			length = min(MSGTYPE06_MAX_MSG_SIZE, length);
 			memcpy(msg->message, reply->message, length);
@@ -1022,10 +1009,10 @@ static void zcrypt_msgtype6_receive_ep11(struct ap_queue *aq,
 static atomic_t zcrypt_step = ATOMIC_INIT(0);
 
 /**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * The request distributor calls this function if it picked the CEXxC
  * device to handle a modexpo request.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
+ *	CEXxC device to the request distributor
  * @mex: pointer to the modexpo request buffer
  */
 static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq,
@@ -1033,7 +1020,7 @@ static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq,
 {
 	struct ap_message ap_msg;
 	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_ICA,
+		.type = CEXXC_RESPONSE_TYPE_ICA,
 	};
 	int rc;
 
@@ -1066,10 +1053,10 @@ static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq,
 }
 
 /**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * The request distributor calls this function if it picked the CEXxC
  * device to handle a modexpo_crt request.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
+ *	CEXxC device to the request distributor
  * @crt: pointer to the modexpoc_crt request buffer
  */
 static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_queue *zq,
@@ -1077,7 +1064,7 @@ static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_queue *zq,
 {
 	struct ap_message ap_msg;
 	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_ICA,
+		.type = CEXXC_RESPONSE_TYPE_ICA,
 	};
 	int rc;
 
@@ -1122,7 +1109,7 @@ unsigned int get_cprb_fc(struct ica_xcRB *xcRB,
 				unsigned int *func_code, unsigned short **dom)
 {
 	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+		.type = CEXXC_RESPONSE_TYPE_XCRB,
 	};
 
 	ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
@@ -1138,10 +1125,10 @@ unsigned int get_cprb_fc(struct ica_xcRB *xcRB,
 }
 
 /**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * The request distributor calls this function if it picked the CEXxC
  * device to handle a send_cprb request.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
+ *	CEXxC device to the request distributor
  * @xcRB: pointer to the send_cprb request buffer
  */
 static long zcrypt_msgtype6_send_cprb(struct zcrypt_queue *zq,
@@ -1177,7 +1164,7 @@ unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb,
 				    unsigned int *func_code)
 {
 	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_EP11,
+		.type = CEXXC_RESPONSE_TYPE_EP11,
 	};
 
 	ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
@@ -1271,7 +1258,7 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code,
 						   unsigned int *domain)
 {
 	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+		.type = CEXXC_RESPONSE_TYPE_XCRB,
 	};
 
 	ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
@@ -1291,10 +1278,10 @@ unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code,
 }
 
 /**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * The request distributor calls this function if it picked the CEXxC
  * device to generate random data.
  * @zq: pointer to zcrypt_queue structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
+ *	CEXxC device to the request distributor
  * @buffer: pointer to a memory page to return random data
  */
 static long zcrypt_msgtype6_rng(struct zcrypt_queue *zq,
@@ -1329,7 +1316,7 @@ static long zcrypt_msgtype6_rng(struct zcrypt_queue *zq,
 }
 
 /**
- * The crypto operations for a PCIXCC/CEX2C card.
+ * The crypto operations for a CEXxC card.
  */
 static struct zcrypt_ops zcrypt_msgtype6_norng_ops = {
 	.owner = THIS_MODULE,

drivers/s390/crypto/zcrypt_msgtype6.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
@@ -24,7 +22,7 @@
 #define MSGTYPE06_MAX_MSG_SIZE		(12*1024)
 
 /**
- * The type 6 message family is associated with PCICC or PCIXCC cards.
+ * The type 6 message family is associated with CEXxC/CEXxP cards.
  *
  * It contains a message header followed by a CPRB, both of which
  * are described below.
@@ -43,13 +41,8 @@ struct type6_hdr {
 	unsigned int  offset2;		/* 0x00000000			*/
 	unsigned int  offset3;		/* 0x00000000			*/
 	unsigned int  offset4;		/* 0x00000000			*/
-	unsigned char agent_id[16];	/* PCICC:			*/
-					/*    0x0100			*/
-					/*    0x4343412d4150504c202020	*/
-					/*    0x010101			*/
-					/* PCIXCC:			*/
-					/*    0x4341000000000000	*/
-					/*    0x0000000000000000	*/
+	unsigned char agent_id[16];	/* 0x4341000000000000		*/
+					/* 0x0000000000000000		*/
 	unsigned char rqid[2];		/* rqid.  internal to 603	*/
 	unsigned char reserved5[2];	/* 0x0000			*/
 	unsigned char function_code[2];	/* for PKD, 0x5044 (ascii 'PD')	*/
@@ -65,7 +58,7 @@ struct type6_hdr {
 } __packed;
 
 /**
- * The type 86 message family is associated with PCICC and PCIXCC cards.
+ * The type 86 message family is associated with CEXxC/CEXxP cards.
  *
  * It contains a message header followed by a CPRB.  The CPRB is
  * the same as the request CPRB, which is described above.

drivers/s390/crypto/zcrypt_queue.c

 // SPDX-License-Identifier: GPL-2.0+
 /*
- *  zcrypt 2.1.0
- *
  *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)