FreeBSD/Linux Kernel Cross Reference
sys/dev/dmover/dmover_io.h

     /*      $NetBSD: dmover_io.h,v 1.2 2003/07/19 02:00:18 thorpej Exp $    */
     
     /*
      * Copyright (c) 2002, 2003 Wasabi Systems, Inc.
      * All rights reserved.
      *
      * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      *
      * 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.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed for the NetBSD Project by
     *      Wasabi Systems, Inc.
     * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     *    or promote products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
     * 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.
     */
    
    #ifndef _DMOVER_DMOVER_IO_H_
    #define _DMOVER_DMOVER_IO_H_
    
    #include <sys/ioccom.h>
    #include <sys/uio.h>
    
    typedef struct {
            struct iovec *dmbuf_iov;
            u_int dmbuf_iovcnt;
    } dmio_buffer;
    
    /*
     * dmio_usrreq:
     *
     *      Request structure passed from user-space.
     */
    struct dmio_usrreq {
            /* Output buffer. */
            dmio_buffer req_outbuf;
    
            /*
             * General purpose immediate value.  Can be used as an
             * input, output, or both, depending on the function.
             * The output is transmitted via the usrresp structure.
             */
            uint8_t req_immediate[8];
    
            /* Input buffer. */
            dmio_buffer *req_inbuf;
    
            uint32_t req_id;        /* request ID; passed in response */
    };
    
    /*
     * dmio_usrresp:
     *
     *      Response structure passed to user-space.
     */
    struct dmio_usrresp {
            uint32_t resp_id;       /* request ID */
            int resp_error;         /* error, 0 if success */
            uint8_t resp_immediate[8];
    };
    
    /*
     * DMIO_SETFUNC:
     *
     *      Ioctl to set the function type for the session.
     */
    #define DMIO_SETFUNC             _IOW('D', 0, struct dmio_setfunc)
    
    #define DMIO_MAX_FUNCNAME       64
    struct dmio_setfunc {
            char dsf_name[DMIO_MAX_FUNCNAME];
    };
    
    #endif /* _DMOVER_DMOVER_IO_H_ */

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