xref: /openbmc/linux/drivers/scsi/aic7xxx/cam.h (revision 3a4fa0a2)
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 */
45 typedef 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  */
91 typedef 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 
105 typedef 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