[thirdparty/systemd.git] / extras / multipath / main.h

/*
 * 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"

/* exerpt from "sg_err.h" */
#define SCSI_CHECK_CONDITION 	0x2
#define SCSI_COMMAND_TERMINATED 0x22
#define SG_ERR_DRIVER_SENSE     0x08

/* exerpt from "scsi.h" */
#define RECOVERED_ERROR     0x01
#define SCSI_IOCTL_GET_IDLUN            0x5382
#define SCSI_IOCTL_GET_BUS_NUMBER       0x5386

/* 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	"multipath"

/* Storage controlers cpabilities */
#define FAILOVER	0
#define MULTIBUS	1

#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;
	char wwid[WWID_SIZE];
	char vendor_id[8];
	char product_id[16];
	char rev[4];
	int iopolicy;
};

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

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

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

#define VERSION_CODE 0x000010
#define DATE_CODE    0x0C1503

#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
Commit	Line	Data
04a091d4 GKH	1	/*
	2	* Soft: Description here...
	3	*
	4	* Version: $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
	5	*
	6	* Author: Copyright (C) 2003 Christophe Varoqui
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	11	* See the GNU General Public License for more details.
	12	*
	13	* This program is free software; you can redistribute it and/or
	14	* modify it under the terms of the GNU General Public License
	15	* as published by the Free Software Foundation; either version
	16	* 2 of the License, or (at your option) any later version.
	17	*/
	18
	19	#ifndef _MAIN_H
	20	#define _MAIN_H
	21
	22	/* local includes */
	23	#include "sg_include.h"
359618cd CV	24
	25	/* exerpt from "sg_err.h" */
	26	#define SCSI_CHECK_CONDITION 0x2
	27	#define SCSI_COMMAND_TERMINATED 0x22
	28	#define SG_ERR_DRIVER_SENSE 0x08
	29
	30	/* exerpt from "scsi.h" */
	31	#define RECOVERED_ERROR 0x01
	32	#define SCSI_IOCTL_GET_IDLUN 0x5382
	33	#define SCSI_IOCTL_GET_BUS_NUMBER 0x5386
04a091d4 GKH	34
	35	/* global defs */
	36	#define WWID_SIZE 33
	37	#define MAX_DEVS 128
	38	#define MAX_MP MAX_DEVS / 2
	39	#define MAX_MP_PATHS MAX_DEVS / 4
	40	#define FILE_NAME_SIZE 256
	41	#define INQUIRY_CMDLEN 6
	42	#define INQUIRY_CMD 0x12
	43	#define SENSE_BUFF_LEN 32
	44	#define DEF_TIMEOUT 60000
	45	#define EBUFF_SZ 256
	46	#define TUR_CMD_LEN 6
	47	#define MX_ALLOC_LEN 255
	48	#define BLKGETSIZE _IO(0x12,96)
61f76f5c	49	#define DM_TARGET "multipath"
04a091d4	50
4081da7f CV	51	/* Storage controlers cpabilities */
	52	#define FAILOVER 0
	53	#define MULTIBUS 1
	54
04a091d4 GKH	55	#define PINDEX(x,y) mp[(x)].pindex[(y)]
	56
	57	/* global types */
	58	struct scsi_idlun {
	59	int dev_id;
	60	int host_unique_id;
	61	int host_no;
	62	};
	63
	64	struct sg_id {
	65	int host_no;
	66	int channel;
	67	int scsi_id;
	68	int lun;
	69	int scsi_type;
	70	short h_cmd_per_lun;
	71	short d_queue_depth;
	72	int unused1;
	73	int unused2;
	74	};
	75
	76	struct scsi_dev {
	77	char dev[FILE_NAME_SIZE];
	78	struct scsi_idlun scsi_id;
	79	int host_no;
	80	};
	81
	82	struct path {
	83	char dev[FILE_NAME_SIZE];
	84	char sg_dev[FILE_NAME_SIZE];
	85	struct scsi_idlun scsi_id;
	86	struct sg_id sg_id;
04a091d4 GKH	87	char wwid[WWID_SIZE];
	88	char vendor_id[8];
	89	char product_id[16];
	90	char rev[4];
4081da7f	91	int iopolicy;
04a091d4 GKH	92	};
	93
	94	struct multipath {
	95	char wwid[WWID_SIZE];
	96	int npaths;
4081da7f	97	long size;
04a091d4 GKH	98	int pindex[MAX_MP_PATHS];
	99	};
	100
	101	struct env {
	102	int max_devs;
	103	int verbose;
	104	int quiet;
	105	int dry_run;
4081da7f	106	int forcedfailover;
04a091d4	107	int with_sysfs;
17685711	108	int dm_path_test_int;
04a091d4	109	char sysfs_path[FILE_NAME_SIZE];
17685711	110	char hotplugdev[FILE_NAME_SIZE];
04a091d4 GKH	111	};
	112
	113	/* Build version */
	114	#define PROG "multipath"
	115
17685711 CV	116	#define VERSION_CODE 0x000010
17685711 CV	117	#define DATE_CODE 0x0C1503
04a091d4 GKH	118
	119	#define MULTIPATH_VERSION(version) \
	120	(version >> 16) & 0xFF, \
	121	(version >> 8) & 0xFF, \
	122	version & 0xFF
	123
	124	#define VERSION_STRING PROG" v%d.%d.%d (%.2d/%.2d, 20%.2d)\n", \
	125	MULTIPATH_VERSION(VERSION_CODE), \
	126	MULTIPATH_VERSION(DATE_CODE)
	127
	128	#endif