summaryrefslogtreecommitdiff
path: root/extras/multipath/main.h
blob: 43a24ac7bc93c415dcfb1d4092fd900d16753c58 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
/*
 * Soft:        Description here...
 *
 * Version:     $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
 *
 * Author:      Copyright (C) 2003 Christophe Varoqui
 *
 *              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.
 *
 *              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 of the License, or (at your option) any later version.
 */

#ifndef _MAIN_H
#define _MAIN_H

/* local includes */
#include "sg_include.h"
#include "sg_err.h"

/* global defs */
#define WWID_SIZE	33
#define MAX_DEVS	128
#define MAX_MP		MAX_DEVS / 2
#define MAX_MP_PATHS	MAX_DEVS / 4
#define FILE_NAME_SIZE	256
#define INQUIRY_CMDLEN	6
#define INQUIRY_CMD	0x12
#define SENSE_BUFF_LEN	32
#define DEF_TIMEOUT	60000
#define EBUFF_SZ	256
#define TUR_CMD_LEN	6
#define MX_ALLOC_LEN	255
#define BLKGETSIZE      _IO(0x12,96)
#define DM_TARGET	"striped"

#define PINDEX(x,y)	mp[(x)].pindex[(y)]

/* global types */
struct scsi_idlun {
	int dev_id;
	int host_unique_id;
	int host_no;
};

struct sg_id {
	int host_no;
	int channel;
	int scsi_id;
	int lun;
	int scsi_type;
	short h_cmd_per_lun;
	short d_queue_depth;
	int unused1;
	int unused2;
};

struct scsi_dev {
	char dev[FILE_NAME_SIZE];
	struct scsi_idlun scsi_id;
	int host_no;
};

struct path {
	char dev[FILE_NAME_SIZE];
	char sg_dev[FILE_NAME_SIZE];
	struct scsi_idlun scsi_id;
	struct sg_id sg_id;
	int state;
	char wwid[WWID_SIZE];
	char vendor_id[8];
	char product_id[16];
	char rev[4];
};

struct multipath {
	char wwid[WWID_SIZE];
	int npaths;
	int pindex[MAX_MP_PATHS];
};

struct env {
	int max_devs;
	int verbose;
	int quiet;
	int dry_run;
	int with_sysfs;
	char sysfs_path[FILE_NAME_SIZE];
};

/* Build version */
#define PROG    "multipath"

#define VERSION_CODE 0x000005
#define DATE_CODE    0x120903

#define MULTIPATH_VERSION(version)	\
	(version >> 16) & 0xFF,		\
	(version >> 8) & 0xFF,		\
	version & 0xFF

#define VERSION_STRING PROG" v%d.%d.%d (%.2d/%.2d, 20%.2d)\n",	\
                MULTIPATH_VERSION(VERSION_CODE),		\
                MULTIPATH_VERSION(DATE_CODE)

#endif