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 */