1/*
2 * Data structures and definitions for the CAM system.
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * Copyright (c) 2000 Adaptec Inc.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions, and the following disclaimer,
13 *    without modification.
14 * 2. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU General Public License ("GPL").
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/cam.h#15 $
33 */
34
35#ifndef _AIC7XXX_CAM_H
36#define _AIC7XXX_CAM_H 1
37
38#include <linux/types.h>
39
40#define	CAM_BUS_WILDCARD ((u_int)~0)
41#define	CAM_TARGET_WILDCARD ((u_int)~0)
42#define	CAM_LUN_WILDCARD ((u_int)~0)
43
44/* CAM Status field values */
45typedef enum {
46	CAM_REQ_INPROG,		/* CCB request is in progress */
47	CAM_REQ_CMP,		/* CCB request completed without error */
48	CAM_REQ_ABORTED,	/* CCB request aborted by the host */
49	CAM_UA_ABORT,		/* Unable to abort CCB request */
50	CAM_REQ_CMP_ERR,	/* CCB request completed with an error */
51	CAM_BUSY,		/* CAM subsystem is busy */
52	CAM_REQ_INVALID,	/* CCB request was invalid */
53	CAM_PATH_INVALID,	/* Supplied Path ID is invalid */
54	CAM_SEL_TIMEOUT,	/* Target Selection Timeout */
55	CAM_CMD_TIMEOUT,	/* Command timeout */
56	CAM_SCSI_STATUS_ERROR,	/* SCSI error, look at error code in CCB */
57	CAM_SCSI_BUS_RESET,	/* SCSI Bus Reset Sent/Received */
58	CAM_UNCOR_PARITY,	/* Uncorrectable parity error occurred */
59	CAM_AUTOSENSE_FAIL,	/* Autosense: request sense cmd fail */
60	CAM_NO_HBA,		/* No HBA Detected Error */
61	CAM_DATA_RUN_ERR,	/* Data Overrun error */
62	CAM_UNEXP_BUSFREE,	/* Unexpected Bus Free */
63	CAM_SEQUENCE_FAIL,	/* Protocol Violation */
64	CAM_CCB_LEN_ERR,	/* CCB length supplied is inadequate */
65	CAM_PROVIDE_FAIL,	/* Unable to provide requested capability */
66	CAM_BDR_SENT,		/* A SCSI BDR msg was sent to target */
67	CAM_REQ_TERMIO,		/* CCB request terminated by the host */
68	CAM_UNREC_HBA_ERROR,	/* Unrecoverable Host Bus Adapter Error */
69	CAM_REQ_TOO_BIG,	/* The request was too large for this host */
70	CAM_UA_TERMIO,		/* Unable to terminate I/O CCB request */
71	CAM_MSG_REJECT_REC,	/* Message Reject Received */
72	CAM_DEV_NOT_THERE,	/* SCSI Device Not Installed/there */
73	CAM_RESRC_UNAVAIL,	/* Resource Unavailable */
74	/*
75	 * This request should be requeued to preserve
76	 * transaction ordering.  This typically occurs
77	 * when the SIM recognizes an error that should
78	 * freeze the queue and must place additional
79	 * requests for the target at the sim level
80	 * back into the XPT queue.
81	 */
82	CAM_REQUEUE_REQ,
83	CAM_DEV_QFRZN		= 0x40,
84
85	CAM_STATUS_MASK		= 0x3F
86} cam_status;
87
88/*
89 * Definitions for the asynchronous callback CCB fields.
90 */
91typedef enum {
92	AC_GETDEV_CHANGED	= 0x800,/* Getdev info might have changed */
93	AC_INQ_CHANGED		= 0x400,/* Inquiry info might have changed */
94	AC_TRANSFER_NEG		= 0x200,/* New transfer settings in effect */
95	AC_LOST_DEVICE		= 0x100,/* A device went away */
96	AC_FOUND_DEVICE		= 0x080,/* A new device was found */
97	AC_PATH_DEREGISTERED	= 0x040,/* A path has de-registered */
98	AC_PATH_REGISTERED	= 0x020,/* A new path has been registered */
99	AC_SENT_BDR		= 0x010,/* A BDR message was sent to target */
100	AC_SCSI_AEN		= 0x008,/* A SCSI AEN has been received */
101	AC_UNSOL_RESEL		= 0x002,/* Unsolicited reselection occurred */
102	AC_BUS_RESET		= 0x001 /* A SCSI bus reset occurred */
103} ac_code;
104
105typedef enum {
106	CAM_DIR_IN		= DMA_FROM_DEVICE,
107	CAM_DIR_OUT		= DMA_TO_DEVICE,
108	CAM_DIR_NONE		= DMA_NONE,
109} ccb_flags;
110
111#endif /* _AIC7XXX_CAM_H */
112