usr/src/uts/sun4v/sys/drctl_impl.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _SYS_DRCTL_IMPL_H
  28 #define _SYS_DRCTL_IMPL_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #define DRCTL_IOC_IMPL  ('I' << 8)
  37
  38 /*
  39  * The communication with the backend should be decoupled from the
  40  * rest of the drctl module.  Currently, the backend lives in
  41  * userland and this module communicates with it via a door upcall.
  42  * In the future the backend may be kernel resident.  For this
  43  * reason the interface is placed in a separate "impl" source
  44  * module and can be easily replaced.
  45  */
  46 #define DRCTL_IOCTL_CONNECT_SERVER (DRCTL_IOC_IMPL | 1)
  47
  48 typedef struct drctl_setup {
  49         uint_t did;
  50 } drctl_setup_t;
  51
  52 extern void i_drctl_init(void);
  53 extern void i_drctl_fini(void);
  54 extern int i_drctl_ioctl(int, intptr_t);
  55 extern int i_drctl_send(void *, size_t, void **, size_t *);
  56
  57 #ifdef  __cplusplus
  58 }
  59 #endif
  60
  61 #endif  /* _SYS_DRCTL_IMPL_H */