73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
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/*-
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* Copyright (c) 2003 Silicon Graphics International Corp.
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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.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_backend_block.h#1 $
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* $FreeBSD$
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*/
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/*
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* CAM Target Layer driver backend interface for block devices.
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*
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* Author: Ken Merry <ken@FreeBSD.org>
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*/
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#ifndef _CTL_BACKEND_BLOCK_H_
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#define _CTL_BACKEND_BLOCK_H_
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struct ctl_block_disk {
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uint32_t version; /* interface version */
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uint32_t disknum; /* returned device number */
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STAILQ_ENTRY(ctl_block_disk) links; /* linked list pointer */
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char disk_name[MAXPATHLEN]; /* name of this device */
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int allocated; /* disk is allocated to a LUN */
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uint64_t size_blocks; /* disk size in blocks */
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uint64_t size_bytes; /* disk size in bytes */
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};
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typedef enum {
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CTL_BLOCK_DEVLIST_MORE,
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CTL_BLOCK_DEVLIST_DONE
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} ctl_block_devlist_status;
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struct ctl_block_devlist {
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uint32_t version; /* interface version */
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uint32_t buf_len; /* passed in, buffer length */
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uint32_t ctl_disk_size; /* size of adddev, passed in */
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struct ctl_block_disk *devbuf; /* buffer passed in/filled out*/
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uint32_t num_bufs; /* number passed out */
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uint32_t buf_used; /* bytes passed out */
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uint32_t total_disks; /* number of disks in system */
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ctl_block_devlist_status status; /* did we get the whole list? */
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};
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#define CTL_BLOCK_ADDDEV _IOWR(COPAN_ARRAY_BE_BLOCK, 0x00, struct ctl_block_disk)
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#define CTL_BLOCK_DEVLIST _IOWR(COPAN_ARRAY_BE_BLOCK, 0x01, struct ctl_block_devlist)
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#define CTL_BLOCK_RMDEV _IOW(COPAN_ARRAY_BE_BLOCK, 0x02, struct ctl_block_disk)
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#endif /* _CTL_BACKEND_BLOCK_H_ */
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