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dmover_io.h revision 1.1.12.3 
      1 /*	$NetBSD: dmover_io.h,v 1.1.12.3 2004/09/21 13:27:36 skrll Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2002, 2003 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #ifndef _DMOVER_DMOVER_IO_H_
     39 #define _DMOVER_DMOVER_IO_H_
     40 
     41 #include <sys/ioccom.h>
     42 #include <sys/uio.h>
     43 
     44 typedef struct {
     45 	struct iovec *dmbuf_iov;
     46 	u_int dmbuf_iovcnt;
     47 } dmio_buffer;
     48 
     49 /*
     50  * dmio_usrreq:
     51  *
     52  *	Request structure passed from user-space.
     53  */
     54 struct dmio_usrreq {
     55 	/* Output buffer. */
     56 	dmio_buffer req_outbuf;
     57 
     58 	/*
     59 	 * General purpose immediate value.  Can be used as an
     60 	 * input, output, or both, depending on the function.
     61 	 * The output is transmitted via the usrresp structure.
     62 	 */
     63 	uint8_t req_immediate[8];
     64 
     65 	/* Input buffer. */
     66 	dmio_buffer *req_inbuf;
     67 
     68 	uint32_t req_id;	/* request ID; passed in response */
     69 };
     70 
     71 /*
     72  * dmio_usrresp:
     73  *
     74  *	Response structure passed to user-space.
     75  */
     76 struct dmio_usrresp {
     77 	uint32_t resp_id;	/* request ID */
     78 	int resp_error;		/* error, 0 if success */
     79 	uint8_t resp_immediate[8];
     80 };
     81 
     82 /*
     83  * DMIO_SETFUNC:
     84  *
     85  *	Ioctl to set the function type for the session.
     86  */
     87 #define	DMIO_SETFUNC		 _IOW('D', 0, struct dmio_setfunc)
     88 
     89 #define	DMIO_MAX_FUNCNAME	64
     90 struct dmio_setfunc {
     91 	char dsf_name[DMIO_MAX_FUNCNAME];
     92 };
     93 
     94 #endif /* _DMOVER_DMOVER_IO_H_ */
     95