usr/src/uts/common/sys/emul64.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_ADAPTERS_EMUL64_H
  28 #define _SYS_SCSI_ADAPTERS_EMUL64_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  * This file defines the commands and structures for three emul64 ioctls,
  34  * that may be useful in speeding up tests involving large devices.  The
  35  * ioctls are documented at
  36  * http://lvm.central.sun.com/projects/lagavulin/emul64_design.html#ioctl.
  37  * Briefly, there are three ioctls:
  38  *
  39  *      EMUL64_WRITE_OFF - ignore all write operations to a specified block
  40  *              range.
  41  *      EMUL64_WRITE_ON - enable writes to a specified block range.
  42  *      EMUL64_ZERO_RANGE - zero all blocks in the specified range.
  43  *
  44  * The emul64_range structure is used to specify a block range for these
  45  * ioctls.
  46  */
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 #include <sys/inttypes.h>
  53 #include <sys/types.h>
  54 #include <sys/scsi/scsi.h>
  55
  56 /*
  57  * emul64 ioctl commands:
  58  */
  59
  60 #define EMUL64IOC       ('e' << 8)
  61
  62 #define EMUL64_WRITE_OFF        (EMUL64IOC|37)
  63 #define EMUL64_WRITE_ON         (EMUL64IOC|38)
  64 #define EMUL64_ZERO_RANGE       (EMUL64IOC|39)
  65 #define EMUL64_ERROR_INJECT     (EMUL64IOC|40)
  66
  67 struct emul64_range {
  68         diskaddr_t      emul64_sb;      /* starting block # of range */
  69         uint64_t        emul64_blkcnt;  /* # of blocks in range */
  70 };
  71
  72 typedef struct emul64_range emul64_range_t;
  73
  74 /*
  75  * Structure to use when specifying an ioctl for a range of blocks on a
  76  * specific target.
  77  */
  78 struct emul64_tgt_range {
  79         emul64_range_t  emul64_blkrange; /* blocks affected by ioctl */
  80         ushort_t        emul64_target;  /* target number of disk */
  81         ushort_t        emul64_lun;     /* lun of disk */
  82 };
  83
  84 typedef struct emul64_tgt_range emul64_tgt_range_t;
  85
  86 /*
  87  * Structure to use for specifying error injection sense data
  88  */
  89 #define ERR_INJ_DISABLE         0
  90 #define ERR_INJ_ENABLE          1
  91 #define ERR_INJ_ENABLE_NODATA   2
  92
  93 struct emul64_error_inj_data {
  94         ushort_t        eccd_target;
  95         ushort_t        eccd_lun;
  96         ushort_t        eccd_inj_state; /* ERR_INJ_DISABLE, ... */
  97         ushort_t        eccd_sns_dlen; /* Number of bytes of sense data */
  98         struct scsi_status eccd_scsi_status;
  99         uchar_t         eccd_pkt_reason;
 100         uint_t          eccd_pkt_state;
 101 };
 102
 103 #ifdef __cplusplus
 104 }
 105 #endif
 106
 107 #endif /* _SYS_SCSI_ADAPTERS_EMUL64_H */