xref: /freebsd/sys/dev/isci/scil/scif_task_request.h (revision 0957b409)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3  *
4  * This file is provided under a dual BSD/GPLv2 license.  When using or
5  * redistributing this file, you may do so under either license.
6  *
7  * GPL LICENSE SUMMARY
8  *
9  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of version 2 of the GNU General Public License as
13  * published by the Free Software Foundation.
14  *
15  * This program is distributed in the hope that it will be useful, but
16  * WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
23  * The full GNU General Public License is included in this distribution
24  * in the file called LICENSE.GPL.
25  *
26  * BSD LICENSE
27  *
28  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
29  * All rights reserved.
30  *
31  * Redistribution and use in source and binary forms, with or without
32  * modification, are permitted provided that the following conditions
33  * are met:
34  *
35  *   * Redistributions of source code must retain the above copyright
36  *     notice, this list of conditions and the following disclaimer.
37  *   * Redistributions in binary form must reproduce the above copyright
38  *     notice, this list of conditions and the following disclaimer in
39  *     the documentation and/or other materials provided with the
40  *     distribution.
41  *
42  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53  *
54  * $FreeBSD$
55  */
56 #ifndef _SCIF_TASK_REQUEST_H_
57 #define _SCIF_TASK_REQUEST_H_
58 
59 /**
60  * @file
61  *
62  * @brief This file contains the structures and interface methods that
63  *        can be referenced and used by the SCI user for the SCI task
64  *        management request object.
65  */
66 
67 #ifdef __cplusplus
68 extern "C" {
69 #endif // __cplusplus
70 
71 #include <dev/isci/scil/sci_types.h>
72 #include <dev/isci/scil/sci_status.h>
73 
74 
75 /**
76  * @brief This method simply returns the size required to construct an SCI
77  *        based task request object (includes core & framework object size).
78  *
79  * @return Retrun the size of the SCI task request object.
80  */
81 U32 scif_task_request_get_object_size(
82    void
83 );
84 
85 /**
86  * @brief This method is called by the SCIF user to construct a task
87  *        management request.  This method will construct a SCIC task request
88  *        internally.
89  *
90  * @note  The SCI framework implementation will create an association between
91  *        the user task request object and the framework task request object.
92  *
93  * @param[in]  scif_controller the handle to the framework controller object
94  *             for which to build an IO request.
95  * @param[in]  scif_remote_device This parameter specifies the framework
96  *             remote device with which this task request is to be associated.
97  * @param[in]  io_tag This parameter specifies the IO tag to be associated
98  *             with this request.  If SCI_CONTROLLER_INVALID_IO_TAG is
99  *             passed, then a copy of the request is built internally.  The
100  *             request will be copied into the actual controller request
101  *             memory when the IO tag is allocated internally during the
102  *             scif_controller_start_task() method.
103  * @param[in]  user_task_request_object This parameter specifies the user
104  *             task request to be utilized during task construction.  This task
105  *             pointer will become the associated object for the framework
106  *             task request object.
107  * @param[in]  task_request_memory This parameter specifies the memory
108  *             to be utilized in the construction of the framework task request.
109  * @param[in]  scif_task_request This parameter specifies the handle to be
110  *             utilized for all further interactions with this task request
111  *             object.
112  *
113  * @return Indicate if the controller successfully built the task request.
114  * @retval SCI_SUCCESS This value is returned if the task request was
115  *         successfully built.
116  */
117 SCI_STATUS scif_task_request_construct(
118    SCI_CONTROLLER_HANDLE_T      scif_controller,
119    SCI_REMOTE_DEVICE_HANDLE_T   scif_remote_device,
120    U16                          io_tag,
121    void                       * user_task_request_object,
122    void                       * task_request_memory,
123    SCI_TASK_REQUEST_HANDLE_T  * scif_task_request
124 );
125 
126 #ifdef __cplusplus
127 }
128 #endif // __cplusplus
129 
130 #endif // _SCIF_TASK_REQUEST_H_
131 
132