9e6461a2d8
rescan requests. The purpose of this is to allow a SIM (or other entities) to request a bus rescan and have it then fielded in a different (process) context from the caller. There are probably better ways to accomplish this, but it's a very small change that helps solve a number of problems. Reviewed by: Justin, Ken and Scott. MFC after: 2 weeks
80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
/*-
|
|
* Data structures and definitions for dealing with the
|
|
* Common Access Method Transport (xpt) layer.
|
|
*
|
|
* Copyright (c) 1997 Justin T. Gibbs.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _CAM_CAM_XPT_H
|
|
#define _CAM_CAM_XPT_H 1
|
|
|
|
/* Forward Declarations */
|
|
union ccb;
|
|
struct cam_periph;
|
|
struct cam_sim;
|
|
|
|
/*
|
|
* Definition of a CAM path. Paths are created from bus, target, and lun ids
|
|
* via xpt_create_path and allow for reference to devices without recurring
|
|
* lookups in the edt.
|
|
*/
|
|
struct cam_path;
|
|
|
|
/* Path functions */
|
|
|
|
#ifdef _KERNEL
|
|
|
|
void xpt_action(union ccb *new_ccb);
|
|
void xpt_setup_ccb(struct ccb_hdr *ccb_h,
|
|
struct cam_path *path,
|
|
u_int32_t priority);
|
|
void xpt_merge_ccb(union ccb *master_ccb,
|
|
union ccb *slave_ccb);
|
|
cam_status xpt_create_path(struct cam_path **new_path_ptr,
|
|
struct cam_periph *perph,
|
|
path_id_t path_id,
|
|
target_id_t target_id, lun_id_t lun_id);
|
|
void xpt_free_path(struct cam_path *path);
|
|
int xpt_path_comp(struct cam_path *path1,
|
|
struct cam_path *path2);
|
|
void xpt_print_path(struct cam_path *path);
|
|
void xpt_print(struct cam_path *path, const char *fmt, ...);
|
|
int xpt_path_string(struct cam_path *path, char *str,
|
|
size_t str_len);
|
|
path_id_t xpt_path_path_id(struct cam_path *path);
|
|
target_id_t xpt_path_target_id(struct cam_path *path);
|
|
lun_id_t xpt_path_lun_id(struct cam_path *path);
|
|
struct cam_sim *xpt_path_sim(struct cam_path *path);
|
|
struct cam_periph *xpt_path_periph(struct cam_path *path);
|
|
void xpt_async(u_int32_t async_code, struct cam_path *path,
|
|
void *async_arg);
|
|
void xpt_rescan(union ccb *ccb);
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _CAM_CAM_XPT_H */
|
|
|