Release 4.11 drivers/s390/crypto/zcrypt_error.h
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* 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>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ZCRYPT_ERROR_H_
#define _ZCRYPT_ERROR_H_
#include <linux/atomic.h>
#include "zcrypt_debug.h"
#include "zcrypt_api.h"
/**
* Reply Messages
*
* Error reply messages are of two types:
* 82: Error (see below)
* 88: Error (see below)
* Both type 82 and type 88 have the same structure in the header.
*
* Request reply messages are of three known types:
* 80: Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS)
* 84: Reply from a Type 4 Request (see PCICA-RELATED STRUCTS)
* 86: Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS)
*
*/
struct error_hdr {
unsigned char reserved1; /* 0x00 */
unsigned char type; /* 0x82 or 0x88 */
unsigned char reserved2[2]; /* 0x0000 */
unsigned char reply_code; /* reply code */
unsigned char reserved3[3]; /* 0x000000 */
};
#define TYPE82_RSP_CODE 0x82
#define TYPE88_RSP_CODE 0x88
#define REP82_ERROR_MACHINE_FAILURE 0x10
#define REP82_ERROR_PREEMPT_FAILURE 0x12
#define REP82_ERROR_CHECKPT_FAILURE 0x14
#define REP82_ERROR_MESSAGE_TYPE 0x20
#define REP82_ERROR_INVALID_COMM_CD 0x21
/* Type 84 */
#define REP82_ERROR_INVALID_MSG_LEN 0x23
#define REP82_ERROR_RESERVD_FIELD 0x24
/* was 0x50 */
#define REP82_ERROR_FORMAT_FIELD 0x29
#define REP82_ERROR_INVALID_COMMAND 0x30
#define REP82_ERROR_MALFORMED_MSG 0x40
#define REP82_ERROR_INVALID_DOMAIN_PRECHECK 0x42
#define REP82_ERROR_RESERVED_FIELDO 0x50
/* old value */
#define REP82_ERROR_WORD_ALIGNMENT 0x60
#define REP82_ERROR_MESSAGE_LENGTH 0x80
#define REP82_ERROR_OPERAND_INVALID 0x82
#define REP82_ERROR_OPERAND_SIZE 0x84
#define REP82_ERROR_EVEN_MOD_IN_OPND 0x85
#define REP82_ERROR_RESERVED_FIELD 0x88
#define REP82_ERROR_INVALID_DOMAIN_PENDING 0x8A
#define REP82_ERROR_TRANSPORT_FAIL 0x90
#define REP82_ERROR_PACKET_TRUNCATED 0xA0
#define REP82_ERROR_ZERO_BUFFER_LEN 0xB0
#define REP88_ERROR_MODULE_FAILURE 0x10
#define REP88_ERROR_MESSAGE_TYPE 0x20
#define REP88_ERROR_MESSAGE_MALFORMD 0x22
#define REP88_ERROR_MESSAGE_LENGTH 0x23
#define REP88_ERROR_RESERVED_FIELD 0x24
#define REP88_ERROR_KEY_TYPE 0x34
#define REP88_ERROR_INVALID_KEY 0x82
/* CEX2A */
#define REP88_ERROR_OPERAND 0x84
/* CEX2A */
#define REP88_ERROR_OPERAND_EVEN_MOD 0x85
/* CEX2A */
static inline int convert_error(struct zcrypt_queue *zq,
struct ap_message *reply)
{
struct error_hdr *ehdr = reply->message;
int card = AP_QID_CARD(zq->queue->qid);
int queue = AP_QID_QUEUE(zq->queue->qid);
switch (ehdr->reply_code) {
case REP82_ERROR_OPERAND_INVALID:
case REP82_ERROR_OPERAND_SIZE:
case REP82_ERROR_EVEN_MOD_IN_OPND:
case REP88_ERROR_MESSAGE_MALFORMD:
case REP82_ERROR_INVALID_DOMAIN_PRECHECK:
case REP82_ERROR_INVALID_DOMAIN_PENDING:
// REP88_ERROR_INVALID_KEY // '82' CEX2A
// REP88_ERROR_OPERAND // '84' CEX2A
// REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A
/* Invalid input data. */
ZCRYPT_DBF(DBF_WARN,
"device=%02x.%04x reply=0x%02x => rc=EINVAL\n",
card, queue, ehdr->reply_code);
return -EINVAL;
case REP82_ERROR_MESSAGE_TYPE:
// REP88_ERROR_MESSAGE_TYPE // '20' CEX2A
/*
* To sent a message of the wrong type is a bug in the
* device driver. Send error msg, disable the device
* and then repeat the request.
*/
atomic_set(&zcrypt_rescan_req, 1);
zq->online = 0;
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
card, queue);
ZCRYPT_DBF(DBF_ERR,
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
card, queue, ehdr->reply_code);
return -EAGAIN;
case REP82_ERROR_TRANSPORT_FAIL:
case REP82_ERROR_MACHINE_FAILURE:
// REP88_ERROR_MODULE_FAILURE // '10' CEX2A
/* If a card fails disable it and repeat the request. */
atomic_set(&zcrypt_rescan_req, 1);
zq->online = 0;
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
card, queue);
ZCRYPT_DBF(DBF_ERR,
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
card, queue, ehdr->reply_code);
return -EAGAIN;
default:
zq->online = 0;
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
card, queue);
ZCRYPT_DBF(DBF_ERR,
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
card, queue, ehdr->reply_code);
return -EAGAIN; /* repeat the request on a different device. */
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 93 | 40.09% | 1 | 14.29% |
| Harald Freudenberger | 57 | 24.57% | 2 | 28.57% |
| Holger Dengler | 47 | 20.26% | 1 | 14.29% |
| Ingo Tuchscherer | 35 | 15.09% | 3 | 42.86% |
| Total | 232 | 100.00% | 7 | 100.00% |
#endif /* _ZCRYPT_ERROR_H_ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Martin Schwidefsky | 272 | 63.85% | 1 | 12.50% |
| Harald Freudenberger | 65 | 15.26% | 2 | 25.00% |
| Holger Dengler | 53 | 12.44% | 1 | 12.50% |
| Ingo Tuchscherer | 35 | 8.22% | 3 | 37.50% |
| Heiko Carstens | 1 | 0.23% | 1 | 12.50% |
| Total | 426 | 100.00% | 8 | 100.00% |
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