FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_targetio.h

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

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