FreeBSD kernel CAM code
scsi_targetio.h
Go to the documentation of this file.
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/*-
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* Ioctl definitions for the SCSI Target Driver
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*
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002 Nate Lawson.
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* Copyright (c) 1998 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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* $FreeBSD$
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*/
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#ifndef _CAM_SCSI_SCSI_TARGETIO_H_
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#define _CAM_SCSI_SCSI_TARGETIO_H_
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#ifndef _KERNEL
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#include <sys/types.h>
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#endif
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#include <sys/ioccom.h>
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#include <
cam/cam.h
>
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#include <
cam/cam_ccb.h
>
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/*
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* CCBs (ATIO, CTIO, INOT, REL_SIMQ) are sent to the kernel driver
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* by writing one or more pointers. The user receives notification
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* of CCB completion through poll/select/kqueue and then calls
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* read(2) which outputs pointers to the completed CCBs.
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*/
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/*
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* Enable and disable a target mode instance. For enabling, the path_id,
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* target_id, and lun_id fields must be set. The grp6/7_len fields
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* specify the length of vendor-specific CDBs the target expects and
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* should normally be set to 0. On successful completion
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* of enable, the specified target instance will answer selection.
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* Disable causes the target instance to abort any outstanding commands
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* and stop accepting new ones. The aborted CCBs will be returned to
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* the user via read(2) or discarded if the user closes the device.
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* The user can then re-enable the device for a new path.
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*/
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struct
ioc_enable_lun
{
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path_id_t
path_id
;
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target_id_t
target_id
;
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lun_id_t
lun_id
;
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int
grp6_len
;
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int
grp7_len
;
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};
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#define TARGIOCENABLE _IOW('C', 5, struct ioc_enable_lun)
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#define TARGIOCDISABLE _IO('C', 6)
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/*
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* Set/clear debugging for this target mode instance
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*/
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#define TARGIOCDEBUG _IOW('C', 7, int)
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TAILQ_HEAD
(ccb_queue,
ccb_hdr
);
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#endif
/* _CAM_SCSI_SCSI_TARGETIO_H_ */
cam.h
path_id_t
u_int path_id_t
Definition:
cam.h:42
target_id_t
u_int target_id_t
Definition:
cam.h:43
lun_id_t
u_int64_t lun_id_t
Definition:
cam.h:44
cam_ccb.h
TAILQ_HEAD
TAILQ_HEAD(ccb_queue, ccb_hdr)
ccb_hdr
Definition:
cam_ccb.h:348
ioc_enable_lun
Definition:
scsi_targetio.h:62
ioc_enable_lun::target_id
target_id_t target_id
Definition:
scsi_targetio.h:64
ioc_enable_lun::lun_id
lun_id_t lun_id
Definition:
scsi_targetio.h:65
ioc_enable_lun::path_id
path_id_t path_id
Definition:
scsi_targetio.h:63
ioc_enable_lun::grp7_len
int grp7_len
Definition:
scsi_targetio.h:67
ioc_enable_lun::grp6_len
int grp6_len
Definition:
scsi_targetio.h:66
cam
scsi
scsi_targetio.h
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