LXR linux/drivers/scsi/aic7xxx/cam.h

   1/*
   2 * Data structures and definitions for the CAM system.
   3 *
   4 * Copyright (c) 1997 Justin T. Gibbs.
   5 * Copyright (c) 2000 Adaptec Inc.
   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.
  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 * Alternatively, this software may be distributed under the terms of the
  18 * GNU General Public License ("GPL").
  19 *
  20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30 * SUCH DAMAGE.
  31 *
  32 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/cam.h#15 $
  33 */
  34
  35#ifndef _AIC7XXX_CAM_H
  36#define _AIC7XXX_CAM_H 1
  37
  38#include <linux/types.h>
  39
  40#define CAM_BUS_WILDCARD ((u_int)~0)
  41#define CAM_TARGET_WILDCARD ((u_int)~0)
  42#define CAM_LUN_WILDCARD ((u_int)~0)
  43
  44/* CAM Status field values */
  45typedef enum {
  46        CAM_REQ_INPROG,         /* CCB request is in progress */
  47        CAM_REQ_CMP,            /* CCB request completed without error */
  48        CAM_REQ_ABORTED,        /* CCB request aborted by the host */
  49        CAM_UA_ABORT,           /* Unable to abort CCB request */
  50        CAM_REQ_CMP_ERR,        /* CCB request completed with an error */
  51        CAM_BUSY,               /* CAM subsystem is busy */
  52        CAM_REQ_INVALID,        /* CCB request was invalid */
  53        CAM_PATH_INVALID,       /* Supplied Path ID is invalid */
  54        CAM_SEL_TIMEOUT,        /* Target Selection Timeout */
  55        CAM_CMD_TIMEOUT,        /* Command timeout */
  56        CAM_SCSI_STATUS_ERROR,  /* SCSI error, look at error code in CCB */
  57        CAM_SCSI_BUS_RESET,     /* SCSI Bus Reset Sent/Received */
  58        CAM_UNCOR_PARITY,       /* Uncorrectable parity error occurred */
  59        CAM_AUTOSENSE_FAIL,     /* Autosense: request sense cmd fail */
  60        CAM_NO_HBA,             /* No HBA Detected Error */
  61        CAM_DATA_RUN_ERR,       /* Data Overrun error */
  62        CAM_UNEXP_BUSFREE,      /* Unexpected Bus Free */
  63        CAM_SEQUENCE_FAIL,      /* Protocol Violation */
  64        CAM_CCB_LEN_ERR,        /* CCB length supplied is inadequate */
  65        CAM_PROVIDE_FAIL,       /* Unable to provide requested capability */
  66        CAM_BDR_SENT,           /* A SCSI BDR msg was sent to target */
  67        CAM_REQ_TERMIO,         /* CCB request terminated by the host */
  68        CAM_UNREC_HBA_ERROR,    /* Unrecoverable Host Bus Adapter Error */
  69        CAM_REQ_TOO_BIG,        /* The request was too large for this host */
  70        CAM_UA_TERMIO,          /* Unable to terminate I/O CCB request */
  71        CAM_MSG_REJECT_REC,     /* Message Reject Received */
  72        CAM_DEV_NOT_THERE,      /* SCSI Device Not Installed/there */
  73        CAM_RESRC_UNAVAIL,      /* Resource Unavailable */
  74        /*
  75         * This request should be requeued to preserve
  76         * transaction ordering.  This typically occurs
  77         * when the SIM recognizes an error that should
  78         * freeze the queue and must place additional
  79         * requests for the target at the sim level
  80         * back into the XPT queue.
  81         */
  82        CAM_REQUEUE_REQ,
  83        CAM_DEV_QFRZN           = 0x40,
  84
  85        CAM_STATUS_MASK         = 0x3F
  86} cam_status;
  87
  88/*
  89 * Definitions for the asynchronous callback CCB fields.
  90 */
  91typedef enum {
  92        AC_GETDEV_CHANGED       = 0x800,/* Getdev info might have changed */
  93        AC_INQ_CHANGED          = 0x400,/* Inquiry info might have changed */
  94        AC_TRANSFER_NEG         = 0x200,/* New transfer settings in effect */
  95        AC_LOST_DEVICE          = 0x100,/* A device went away */
  96        AC_FOUND_DEVICE         = 0x080,/* A new device was found */
  97        AC_PATH_DEREGISTERED    = 0x040,/* A path has de-registered */
  98        AC_PATH_REGISTERED      = 0x020,/* A new path has been registered */
  99        AC_SENT_BDR             = 0x010,/* A BDR message was sent to target */
 100        AC_SCSI_AEN             = 0x008,/* A SCSI AEN has been received */
 101        AC_UNSOL_RESEL          = 0x002,/* Unsolicited reselection occurred */
 102        AC_BUS_RESET            = 0x001 /* A SCSI bus reset occurred */
 103} ac_code;
 104
 105typedef enum {
 106        CAM_DIR_IN              = DMA_FROM_DEVICE,
 107        CAM_DIR_OUT             = DMA_TO_DEVICE,
 108        CAM_DIR_NONE            = DMA_NONE,
 109} ccb_flags;
 110
 111#endif /* _AIC7XXX_CAM_H */
 112