include/sys/scsi/scsi_params.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_SCSI_SCSI_PARAMS_H
  28 #define _SYS_SCSI_SCSI_PARAMS_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #define NUM_SENSE_KEYS          16      /* total number of Sense keys */
  37
  38 #define NTAGS                   256     /* number of tags per lun */
  39
  40 /*
  41  * General parallel SCSI parameters
  42  */
  43 #define NTARGETS                8       /* total # of targets per SCSI bus */
  44 #define NTARGETS_WIDE           16      /* #targets per wide SCSI bus */
  45 #define NLUNS_PER_TARGET        8       /* number of luns per target */
  46
  47 /*
  48  * the following defines are useful for setting max LUNs in
  49  * nexus/target drivers
  50  */
  51 #define SCSI_1LUN_PER_TARGET            1
  52 #define SCSI_8LUN_PER_TARGET            NLUNS_PER_TARGET
  53 #define SCSI_16LUNS_PER_TARGET          16
  54 #define SCSI_32LUNS_PER_TARGET          32
  55
  56 #ifdef  __cplusplus
  57 }
  58 #endif
  59
  60 #endif  /* _SYS_SCSI_SCSI_PARAMS_H */