The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/mly/mlyio.h

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    1 /*-
    2  * Copyright (c) 2001 Michael Smith
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  *      $FreeBSD: releng/6.4/sys/dev/mly/mlyio.h 79695 2001-07-14 00:12:23Z msmith $
   27  */
   28 
   29 /********************************************************************************
   30  * Control structures exchanged through the GAM interface with userland
   31  * management tools.
   32  *
   33  * The member naming here is consistent with the Linux driver, with which this
   34  * interface is basically compatible. 
   35  */
   36 struct mly_user_command
   37 {
   38     unsigned char               ControllerNumber;
   39     union mly_command_packet    CommandMailbox;
   40     int                         DataTransferLength;
   41     int                         RequestSenseLength;
   42     void                        *DataTransferBuffer;
   43     void                        *RequestSenseBuffer;
   44     int                         CommandStatus;          /* not in the Linux structure */
   45 };
   46 
   47 #define MLYIO_COMMAND   _IOWR('M', 200, struct mly_user_command)
   48 
   49 struct mly_user_health
   50 {
   51     unsigned char       ControllerNumber;
   52     void                *HealthStatusBuffer;
   53 };
   54 
   55 #define MLYIO_HEALTH    _IOW('M', 201, struct mly_user_health)
   56 
   57 /*
   58  * Command queue statistics
   59  */
   60 
   61 #define MLYQ_FREE       0
   62 #define MLYQ_BUSY       1
   63 #define MLYQ_COMPLETE   2
   64 #define MLYQ_COUNT      3
   65 
   66 struct mly_qstat 
   67 {
   68     u_int32_t   q_length;
   69     u_int32_t   q_max;
   70 };

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