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      1 /*	$NetBSD: iopio.h,v 1.9 2022/04/17 21:24:53 andvar Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _I2O_IOPIO_H_
     33 #define	_I2O_IOPIO_H_
     34 
     35 #include <sys/types.h>
     36 #include <sys/ioccom.h>
     37 
     38 #define	IOP_MAX_MSG_XFERS	3	/* Maximum transfer count per msg */
     39 #define	IOP_MAX_OUTBOUND	256	/* Maximum outbound queue depth */
     40 #define	IOP_MAX_INBOUND		256	/* Maximum inbound queue depth */
     41 #define	IOP_MF_RESERVE		4	/* Frames to reserve for ctl ops */
     42 #define	IOP_MAX_XFER		64*1024	/* Maximum transfer size */
     43 #define	IOP_MAX_MSG_SIZE	160	/* Maximum message frame size */
     44 #define	IOP_MIN_MSG_SIZE	128	/* Minimum size supported by IOP */
     45 
     46 struct iop_tidmap {
     47 	u_short	it_tid;
     48 	u_short	it_flags;
     49 	char	it_dvname[16];
     50 };
     51 #define	IT_CONFIGURED	0x02	/* target configured */
     52 
     53 struct ioppt_buf {
     54 	void	*ptb_data;	/* pointer to buffer */
     55 	size_t	ptb_datalen;	/* buffer size in bytes */
     56 	int	ptb_out;	/* non-zero if transfer is to IOP */
     57 };
     58 
     59 struct ioppt {
     60 	void	*pt_msg;	/* pointer to message buffer */
     61 	size_t	pt_msglen;	/* message buffer size in bytes */
     62 	void	*pt_reply;	/* pointer to reply buffer */
     63 	size_t	pt_replylen;	/* reply buffer size in bytes */
     64 	int	pt_timo;	/* completion timeout in ms */
     65 	int	pt_nbufs;	/* number of transfers */
     66 	struct	ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
     67 };
     68 
     69 #define	IOPIOCPT	_IOWR('u', 0, struct ioppt)
     70 #define	IOPIOCGLCT	_IOWR('u', 1, struct iovec)
     71 #define	IOPIOCGSTATUS	_IOWR('u', 2, struct iovec)
     72 #define	IOPIOCRECONFIG	_IO('u', 3)
     73 #define	IOPIOCGTIDMAP	_IOWR('u', 4, struct iovec)
     74 
     75 #endif	/* !_I2O_IOPIO_H_ */
     76