cam.h

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/*
 * Data structures and definitions for the CAM system.
 *
 * Copyright (c) 1997 Justin T. Gibbs.
 * Copyright (c) 2000 Adaptec Inc.
 * 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.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * 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.
 *
 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/cam.h#15 $
 */

#ifndef _AIC7XXX_CAM_H
#define _AIC7XXX_CAM_H 1

#include <linux/types.h>

#define CAM_BUS_WILDCARD ((u_int)~0)
#define CAM_TARGET_WILDCARD ((u_int)~0)
#define CAM_LUN_WILDCARD ((u_int)~0)

/* CAM Status field values */
typedef enum {
    CAM_REQ_INPROG,     /* CCB request is in progress */
    CAM_REQ_CMP,        /* CCB request completed without error */
    CAM_REQ_ABORTED,    /* CCB request aborted by the host */
    CAM_UA_ABORT,       /* Unable to abort CCB request */
    CAM_REQ_CMP_ERR,    /* CCB request completed with an error */
    CAM_BUSY,       /* CAM subsystem is busy */
    CAM_REQ_INVALID,    /* CCB request was invalid */
    CAM_PATH_INVALID,   /* Supplied Path ID is invalid */
    CAM_SEL_TIMEOUT,    /* Target Selection Timeout */
    CAM_CMD_TIMEOUT,    /* Command timeout */
    CAM_SCSI_STATUS_ERROR,  /* SCSI error, look at error code in CCB */
    CAM_SCSI_BUS_RESET, /* SCSI Bus Reset Sent/Received */
    CAM_UNCOR_PARITY,   /* Uncorrectable parity error occurred */
    CAM_AUTOSENSE_FAIL, /* Autosense: request sense cmd fail */
    CAM_NO_HBA,     /* No HBA Detected Error */
    CAM_DATA_RUN_ERR,   /* Data Overrun error */
    CAM_UNEXP_BUSFREE,  /* Unexpected Bus Free */
    CAM_SEQUENCE_FAIL,  /* Protocol Violation */
    CAM_CCB_LEN_ERR,    /* CCB length supplied is inadequate */
    CAM_PROVIDE_FAIL,   /* Unable to provide requested capability */
    CAM_BDR_SENT,       /* A SCSI BDR msg was sent to target */
    CAM_REQ_TERMIO,     /* CCB request terminated by the host */
    CAM_UNREC_HBA_ERROR,    /* Unrecoverable Host Bus Adapter Error */
    CAM_REQ_TOO_BIG,    /* The request was too large for this host */
    CAM_UA_TERMIO,      /* Unable to terminate I/O CCB request */
    CAM_MSG_REJECT_REC, /* Message Reject Received */
    CAM_DEV_NOT_THERE,  /* SCSI Device Not Installed/there */
    CAM_RESRC_UNAVAIL,  /* Resource Unavailable */
    /*
     * This request should be requeued to preserve
     * transaction ordering.  This typically occurs
     * when the SIM recognizes an error that should
     * freeze the queue and must place additional
     * requests for the target at the sim level
     * back into the XPT queue.
     */
    CAM_REQUEUE_REQ,
    CAM_DEV_QFRZN       = 0x40,

    CAM_STATUS_MASK     = 0x3F
} cam_status;

/*
 * Definitions for the asynchronous callback CCB fields.
 */
typedef enum {
    AC_GETDEV_CHANGED   = 0x800,/* Getdev info might have changed */
    AC_INQ_CHANGED      = 0x400,/* Inquiry info might have changed */
    AC_TRANSFER_NEG     = 0x200,/* New transfer settings in effect */
    AC_LOST_DEVICE      = 0x100,/* A device went away */
    AC_FOUND_DEVICE     = 0x080,/* A new device was found */
    AC_PATH_DEREGISTERED    = 0x040,/* A path has de-registered */
    AC_PATH_REGISTERED  = 0x020,/* A new path has been registered */
    AC_SENT_BDR     = 0x010,/* A BDR message was sent to target */
    AC_SCSI_AEN     = 0x008,/* A SCSI AEN has been received */
    AC_UNSOL_RESEL      = 0x002,/* Unsolicited reselection occurred */
    AC_BUS_RESET        = 0x001 /* A SCSI bus reset occurred */
} ac_code;

typedef enum {
    CAM_DIR_IN      = DMA_FROM_DEVICE,
    CAM_DIR_OUT     = DMA_TO_DEVICE,
    CAM_DIR_NONE        = DMA_NONE,
} ccb_flags;

#endif /* _AIC7XXX_CAM_H */