1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYS_SCSI_ADAPTERS_EMUL64_H
28#define	_SYS_SCSI_ADAPTERS_EMUL64_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32/*
33 * This file defines the commands and structures for three emul64 ioctls,
34 * that may be useful in speeding up tests involving large devices.  The
35 * ioctls are documented at
36 * http://lvm.central.sun.com/projects/lagavulin/emul64_design.html#ioctl.
37 * Briefly, there are three ioctls:
38 *
39 *	EMUL64_WRITE_OFF - ignore all write operations to a specified block
40 *		range.
41 *	EMUL64_WRITE_ON - enable writes to a specified block range.
42 *	EMUL64_ZERO_RANGE - zero all blocks in the specified range.
43 *
44 * The emul64_range structure is used to specify a block range for these
45 * ioctls.
46 */
47
48#ifdef __cplusplus
49extern "C" {
50#endif
51
52#include <sys/inttypes.h>
53#include <sys/types.h>
54#include <sys/scsi/scsi.h>
55
56/*
57 * emul64 ioctl commands:
58 */
59
60#define	EMUL64IOC	('e' << 8)
61
62#define	EMUL64_WRITE_OFF	(EMUL64IOC|37)
63#define	EMUL64_WRITE_ON		(EMUL64IOC|38)
64#define	EMUL64_ZERO_RANGE	(EMUL64IOC|39)
65#define	EMUL64_ERROR_INJECT	(EMUL64IOC|40)
66
67struct emul64_range {
68	diskaddr_t	emul64_sb;	/* starting block # of range */
69	uint64_t	emul64_blkcnt;	/* # of blocks in range */
70};
71
72typedef struct emul64_range emul64_range_t;
73
74/*
75 * Structure to use when specifying an ioctl for a range of blocks on a
76 * specific target.
77 */
78struct emul64_tgt_range {
79	emul64_range_t	emul64_blkrange; /* blocks affected by ioctl */
80	ushort_t	emul64_target;	/* target number of disk */
81	ushort_t	emul64_lun;	/* lun of disk */
82};
83
84typedef struct emul64_tgt_range emul64_tgt_range_t;
85
86/*
87 * Structure to use for specifying error injection sense data
88 */
89#define	ERR_INJ_DISABLE		0
90#define	ERR_INJ_ENABLE		1
91#define	ERR_INJ_ENABLE_NODATA	2
92
93struct emul64_error_inj_data {
94	ushort_t	eccd_target;
95	ushort_t	eccd_lun;
96	ushort_t	eccd_inj_state; /* ERR_INJ_DISABLE, ... */
97	ushort_t	eccd_sns_dlen; /* Number of bytes of sense data */
98	struct scsi_status eccd_scsi_status;
99	uchar_t		eccd_pkt_reason;
100	uint_t		eccd_pkt_state;
101};
102
103#ifdef __cplusplus
104}
105#endif
106
107#endif /* _SYS_SCSI_ADAPTERS_EMUL64_H */
108