sys/dev/i2o/iopio.h

   1 /*      $NetBSD: iopio.h,v 1.5 2008/02/11 03:36:25 dyoung 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 #define IOP_MAX_MSG_XFERS       3       /* Maximum transfer count per msg */
  36 #define IOP_MAX_OUTBOUND        256     /* Maximum outbound queue depth */
  37 #define IOP_MAX_INBOUND         256     /* Maximum inbound queue depth */
  38 #define IOP_MF_RESERVE          4       /* Frames to reserve for ctl ops */
  39 #define IOP_MAX_XFER            64*1024 /* Maximum transfer size */
  40 #define IOP_MAX_MSG_SIZE        160     /* Maximum message frame size */
  41 #define IOP_MIN_MSG_SIZE        128     /* Minumum size supported by IOP */
  42
  43 struct iop_tidmap {
  44         u_short it_tid;
  45         u_short it_flags;
  46         char    it_dvname[16];
  47 };
  48 #define IT_CONFIGURED   0x02    /* target configured */
  49
  50 struct ioppt_buf {
  51         void    *ptb_data;      /* pointer to buffer */
  52         size_t  ptb_datalen;    /* buffer size in bytes */
  53         int     ptb_out;        /* non-zero if transfer is to IOP */
  54 };
  55
  56 struct ioppt {
  57         void    *pt_msg;        /* pointer to message buffer */
  58         size_t  pt_msglen;      /* message buffer size in bytes */
  59         void    *pt_reply;      /* pointer to reply buffer */
  60         size_t  pt_replylen;    /* reply buffer size in bytes */
  61         int     pt_timo;        /* completion timeout in ms */
  62         int     pt_nbufs;       /* number of transfers */
  63         struct  ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
  64 };
  65
  66 #define IOPIOCPT        _IOWR('u', 0, struct ioppt)
  67 #define IOPIOCGLCT      _IOWR('u', 1, struct iovec)
  68 #define IOPIOCGSTATUS   _IOWR('u', 2, struct iovec)
  69 #define IOPIOCRECONFIG  _IO('u', 3)
  70 #define IOPIOCGTIDMAP   _IOWR('u', 4, struct iovec)
  71
  72 #endif  /* !_I2O_IOPIO_H_ */