sys/dev/raid/twe/tweio.h

   1 /*-
   2  * Copyright (c) 2000 Michael Smith
   3  * Copyright (c) 2003 Paul Saab
   4  * Copyright (c) 2003 Vinod Kashyap
   5  * Copyright (c) 2000 BSDi
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      $FreeBSD: src/sys/dev/twe/tweio.h,v 1.1.2.4 2004/04/07 22:18:01 vkashyap Exp $
  30  *      $DragonFly: src/sys/dev/raid/twe/tweio.h,v 1.4 2005/08/22 21:16:20 hmp Exp $
  31  */
  32
  33
  34 /*
  35  * User-space command
  36  *
  37  * Note that the command's scatter/gather list will be computed by the
  38  * driver, and cannot be filled in by the consumer.
  39  */
  40 struct twe_usercommand {
  41     TWE_Command tu_command;     /* command ready for the controller */
  42     void        *tu_data;       /* pointer to data in userspace */
  43     size_t      tu_size;        /* userspace data length */
  44 };
  45
  46 #define TWEIO_COMMAND           _IOWR('T', 100, struct twe_usercommand)
  47
  48 /*
  49  * Command queue statistics
  50  */
  51 #define TWEQ_FREE       0
  52 #define TWEQ_BIO        1
  53 #define TWEQ_READY      2
  54 #define TWEQ_BUSY       3
  55 #define TWEQ_COMPLETE   4
  56 #define TWEQ_COUNT      5       /* total number of queues */
  57
  58 struct twe_qstat {
  59     u_int32_t   q_length;
  60     u_int32_t   q_max;
  61     u_int32_t   q_min;
  62 };
  63
  64 /*
  65  * Statistics request
  66  */
  67 union twe_statrequest {
  68     u_int32_t           ts_item;
  69     struct twe_qstat    ts_qstat;
  70 };
  71
  72 #define TWEIO_STATS             _IOWR('T', 101, union twe_statrequest)
  73
  74 /*
  75  * AEN listen
  76  */
  77 #define TWEIO_AEN_POLL          _IOR('T', 102, u_int16_t)
  78 #define TWEIO_AEN_WAIT          _IOR('T', 103, u_int16_t)
  79
  80 /*
  81  * Controller parameter access
  82  */
  83 struct twe_paramcommand {
  84     u_int16_t   tp_table_id;
  85     u_int8_t    tp_param_id;
  86     void        *tp_data;
  87     u_int8_t    tp_size;
  88 };
  89
  90 #define TWEIO_SET_PARAM         _IOW ('T', 104, struct twe_paramcommand)
  91 #define TWEIO_GET_PARAM         _IOW ('T', 105, struct twe_paramcommand)
  92
  93 /*
  94  * Request a controller soft-reset
  95  */
  96 #define TWEIO_RESET             _IO  ('T', 106)
  97
  98 /*
  99  * Request a drive addition or deletion
 100  */
 101 struct twe_drivecommand {
 102     int         td_unit;
 103 };
 104
 105 #define TWEIO_ADD_UNIT          _IOW ('U', 107, int)
 106 #define TWEIO_DEL_UNIT          _IOW ('U', 108, int)