/*      $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_ */