1 /* 2 * Ioctl definitions for the SCSI Target Driver 3 * 4 * Copyright (c) 2002 Nate Lawson. 5 * Copyright (c) 1998 Justin T. Gibbs. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/cam/scsi/scsi_targetio.h,v 1.5.2.3 2003/02/18 22:07:10 njl Exp $ 30 * $DragonFly: src/sys/bus/cam/scsi/scsi_targetio.h,v 1.3 2003/08/07 21:16:45 dillon Exp $ 31 */ 32 33 #ifndef _CAM_SCSI_SCSI_TARGETIO_H_ 34 #define _CAM_SCSI_SCSI_TARGETIO_H_ 35 #ifndef _KERNEL 36 #include <sys/types.h> 37 #endif 38 #include <sys/ioccom.h> 39 40 #include "../cam.h" 41 #include "../cam_ccb.h" 42 43 /* 44 * CCBs (ATIO, CTIO, INOT, REL_SIMQ) are sent to the kernel driver 45 * by writing one or more pointers. The user receives notification 46 * of CCB completion through poll/select/kqueue and then calls 47 * read(2) which outputs pointers to the completed CCBs. 48 */ 49 50 /* 51 * Enable and disable a target mode instance. For enabling, the path_id, 52 * target_id, and lun_id fields must be set. The grp6/7_len fields 53 * specify the length of vendor-specific CDBs the target expects and 54 * should normally be set to 0. On successful completion 55 * of enable, the specified target instance will answer selection. 56 * Disable causes the target instance to abort any outstanding commands 57 * and stop accepting new ones. The aborted CCBs will be returned to 58 * the user via read(2) or discarded if the user closes the device. 59 * The user can then re-enable the device for a new path. 60 */ 61 struct ioc_enable_lun { 62 path_id_t path_id; 63 target_id_t target_id; 64 lun_id_t lun_id; 65 int grp6_len; 66 int grp7_len; 67 }; 68 #define TARGIOCENABLE _IOW('C', 5, struct ioc_enable_lun) 69 #define TARGIOCDISABLE _IO('C', 6) 70 71 /* 72 * Set/clear debugging for this target mode instance 73 */ 74 #define TARGIOCDEBUG _IOW('C', 7, int) 75 76 TAILQ_HEAD(ccb_queue, ccb_hdr); 77 78 #endif /* _CAM_SCSI_SCSI_TARGETIO_H_ */ 79