1 /*-
2 * Ioctl definitions for the SCSI Target Driver
3 *
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 *
6 * Copyright (c) 2002 Nate Lawson.
7 * Copyright (c) 1998 Justin T. Gibbs.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions, and the following disclaimer,
15 * without modification, immediately at the beginning of the file.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: releng/12.0/sys/cam/scsi/scsi_targetio.h 326265 2017-11-27 15:12:43Z pfg $
32 */
33
34 #ifndef _CAM_SCSI_SCSI_TARGETIO_H_
35 #define _CAM_SCSI_SCSI_TARGETIO_H_
36 #ifndef _KERNEL
37 #include <sys/types.h>
38 #endif
39 #include <sys/ioccom.h>
40
41 #include <cam/cam.h>
42 #include <cam/cam_ccb.h>
43
44 /*
45 * CCBs (ATIO, CTIO, INOT, REL_SIMQ) are sent to the kernel driver
46 * by writing one or more pointers. The user receives notification
47 * of CCB completion through poll/select/kqueue and then calls
48 * read(2) which outputs pointers to the completed CCBs.
49 */
50
51 /*
52 * Enable and disable a target mode instance. For enabling, the path_id,
53 * target_id, and lun_id fields must be set. The grp6/7_len fields
54 * specify the length of vendor-specific CDBs the target expects and
55 * should normally be set to 0. On successful completion
56 * of enable, the specified target instance will answer selection.
57 * Disable causes the target instance to abort any outstanding commands
58 * and stop accepting new ones. The aborted CCBs will be returned to
59 * the user via read(2) or discarded if the user closes the device.
60 * The user can then re-enable the device for a new path.
61 */
62 struct ioc_enable_lun {
63 path_id_t path_id;
64 target_id_t target_id;
65 lun_id_t lun_id;
66 int grp6_len;
67 int grp7_len;
68 };
69 #define TARGIOCENABLE _IOW('C', 5, struct ioc_enable_lun)
70 #define TARGIOCDISABLE _IO('C', 6)
71
72 /*
73 * Set/clear debugging for this target mode instance
74 */
75 #define TARGIOCDEBUG _IOW('C', 7, int)
76
77 TAILQ_HEAD(ccb_queue, ccb_hdr);
78
79 #endif /* _CAM_SCSI_SCSI_TARGETIO_H_ */
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