2 * Data structures and definitions for dealing with the
3 * Common Access Method Transport (xpt) layer.
5 * Copyright (c) 1997 Justin T. Gibbs.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
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.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $FreeBSD: src/sys/cam/cam_xpt.h,v 1.3 1999/12/29 04:54:27 peter Exp $
30 * $DragonFly: src/sys/bus/cam/cam_xpt.h,v 1.4 2008/05/18 20:30:19 pavalos Exp $
33 #ifndef _CAM_CAM_XPT_H
34 #define _CAM_CAM_XPT_H 1
36 /* Forward Declarations */
42 * Definition of a CAM path. Paths are created from bus, target, and lun ids
43 * via xpt_create_path and allow for reference to devices without recurring
52 void xpt_action(union ccb
*new_ccb
);
53 void xpt_action_async(union ccb
*ccb
);
54 void xpt_setup_ccb(struct ccb_hdr
*ccb_h
,
55 struct cam_path
*path
,
57 void xpt_merge_ccb(union ccb
*master_ccb
,
58 union ccb
*slave_ccb
);
59 cam_status
xpt_create_path(struct cam_path
**new_path_ptr
,
60 struct cam_periph
*perph
,
62 target_id_t target_id
, lun_id_t lun_id
);
63 cam_status
xpt_create_path_unlocked(struct cam_path
**new_path_ptr
,
64 struct cam_periph
*perph
,
66 target_id_t target_id
, lun_id_t lun_id
);
67 void xpt_free_path(struct cam_path
*path
);
68 int xpt_path_comp(struct cam_path
*path1
,
69 struct cam_path
*path2
);
70 void xpt_print_path(struct cam_path
*path
);
71 void xpt_print(struct cam_path
*path
, const char *fmt
, ...);
72 int xpt_path_string(struct cam_path
*path
, char *str
,
74 path_id_t
xpt_path_path_id(struct cam_path
*path
);
75 target_id_t
xpt_path_target_id(struct cam_path
*path
);
76 lun_id_t
xpt_path_lun_id(struct cam_path
*path
);
77 struct cam_sim
* xpt_path_sim(struct cam_path
*path
);
78 struct cam_periph
* xpt_path_periph(struct cam_path
*path
);
79 char * xpt_path_serialno(struct cam_path
*path
);
81 void xpt_async(u_int32_t async_code
, struct cam_path
*path
,
83 void xpt_lock_buses(void);
84 void xpt_unlock_buses(void);
85 cam_status
xpt_register_async(int event
, ac_callback_t
*cbfunc
,
86 void *cbarg
, struct cam_path
*path
);
89 #endif /* _CAM_CAM_XPT_H */