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76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/*
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* Data structures and definitions for dealing with the
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* Common Access Method Transport (xpt) layer.
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*
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* Copyright (c) 1997 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef _CAM_CAM_XPT_H
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#define _CAM_CAM_XPT_H 1
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/* Forward Declarations */
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union ccb;
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struct cam_periph;
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struct cam_sim;
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/*
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* Definition of a CAM path. Paths are created from bus, target, and lun ids
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* via xpt_create_path and allow for reference to devices without recurring
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* lookups in the edt.
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*/
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struct cam_path;
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/* Path functions */
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#ifdef KERNEL
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void xpt_action(union ccb *new_ccb);
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void xpt_setup_ccb(struct ccb_hdr *ccb_h,
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struct cam_path *path,
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u_int32_t priority);
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void xpt_merge_ccb(union ccb *master_ccb,
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union ccb *slave_ccb);
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cam_status xpt_create_path(struct cam_path **new_path_ptr,
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struct cam_periph *perph,
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path_id_t path_id,
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target_id_t target_id, lun_id_t lun_id);
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void xpt_free_path(struct cam_path *path);
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int xpt_path_comp(struct cam_path *path1,
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struct cam_path *path2);
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void xpt_print_path(struct cam_path *path);
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path_id_t xpt_path_path_id(struct cam_path *path);
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target_id_t xpt_path_target_id(struct cam_path *path);
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lun_id_t xpt_path_lun_id(struct cam_path *path);
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struct cam_sim *xpt_path_sim(struct cam_path *path);
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struct cam_periph *xpt_path_periph(struct cam_path *path);
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void xpt_async(u_int32_t async_code, struct cam_path *path,
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void *async_arg);
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#endif /* KERNEL */
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#endif /* _CAM_CAM_XPT_H */
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