/*      $NetBSD: iopio.h,v 1.9 2022/04/17 21:24:53 andvar Exp $ */

/*-
* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

#ifndef _I2O_IOPIO_H_
#define _I2O_IOPIO_H_

#include <sys/types.h>
#include <sys/ioccom.h>

#define IOP_MAX_MSG_XFERS       3       /* Maximum transfer count per msg */
#define IOP_MAX_OUTBOUND        256     /* Maximum outbound queue depth */
#define IOP_MAX_INBOUND         256     /* Maximum inbound queue depth */
#define IOP_MF_RESERVE          4       /* Frames to reserve for ctl ops */
#define IOP_MAX_XFER            64*1024 /* Maximum transfer size */
#define IOP_MAX_MSG_SIZE        160     /* Maximum message frame size */
#define IOP_MIN_MSG_SIZE        128     /* Minimum size supported by IOP */

struct iop_tidmap {
       u_short it_tid;
       u_short it_flags;
       char    it_dvname[16];
};
#define IT_CONFIGURED   0x02    /* target configured */

struct ioppt_buf {
       void    *ptb_data;      /* pointer to buffer */
       size_t  ptb_datalen;    /* buffer size in bytes */
       int     ptb_out;        /* non-zero if transfer is to IOP */
};

struct ioppt {
       void    *pt_msg;        /* pointer to message buffer */
       size_t  pt_msglen;      /* message buffer size in bytes */
       void    *pt_reply;      /* pointer to reply buffer */
       size_t  pt_replylen;    /* reply buffer size in bytes */
       int     pt_timo;        /* completion timeout in ms */
       int     pt_nbufs;       /* number of transfers */
       struct  ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
};

#define IOPIOCPT        _IOWR('u', 0, struct ioppt)
#define IOPIOCGLCT      _IOWR('u', 1, struct iovec)
#define IOPIOCGSTATUS   _IOWR('u', 2, struct iovec)
#define IOPIOCRECONFIG  _IO('u', 3)
#define IOPIOCGTIDMAP   _IOWR('u', 4, struct iovec)

#endif  /* !_I2O_IOPIO_H_ */