xref: /freebsd/sys/dev/isci/scil/scif_sas_io_request_states.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
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 
55 #include <sys/cdefs.h>
56 __FBSDID("$FreeBSD$");
57 
58 /**
59  * @file
60  *
61  * @brief This file contains all of the SCIF_SAS_IO_REQUEST object
62  *        state entrance and exit method implementations.
63  */
64 
65 #include <dev/isci/scil/scic_controller.h>
66 
67 #include <dev/isci/scil/scif_sas_io_request.h>
68 #include <dev/isci/scil/scif_sas_domain.h>
69 #include <dev/isci/scil/scif_sas_controller.h>
70 #include <dev/isci/scil/scif_sas_logger.h>
71 
72 //******************************************************************************
73 //* P R O T E C T E D   M E T H O D S
74 //******************************************************************************
75 
76 /**
77  * @brief This method implements the actions taken when entering the
78  *        INITIAL state.
79  *
80  * @param[in]  object This parameter specifies the base object for which
81  *             the state transition is occurring.  This is cast into a
82  *             SCIF_SAS_IO_REQUEST object in the method implementation.
83  *
84  * @return none
85  */
86 static
87 void scif_sas_io_request_initial_state_enter(
88    SCI_BASE_OBJECT_T *object
89 )
90 {
91    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
92 
93    SET_STATE_HANDLER(
94       &fw_io->parent,
95       scif_sas_io_request_state_handler_table,
96       SCI_BASE_REQUEST_STATE_INITIAL
97    );
98 
99    // Initial state is a transitional state to the constructed state
100    sci_base_state_machine_change_state(
101       &fw_io->parent.parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED
102    );
103 }
104 
105 /**
106  * @brief This method implements the actions taken when entering the
107  *        CONSTRUCTED state.
108  *
109  * @param[in]  object This parameter specifies the base object for which
110  *             the state transition is occurring.  This is cast into a
111  *             SCIF_SAS_IO_REQUEST object in the method implementation.
112  *
113  * @return none
114  */
115 static
116 void scif_sas_io_request_constructed_state_enter(
117    SCI_BASE_OBJECT_T *object
118 )
119 {
120    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
121 
122    SET_STATE_HANDLER(
123       &fw_io->parent,
124       scif_sas_io_request_state_handler_table,
125       SCI_BASE_REQUEST_STATE_CONSTRUCTED
126    );
127 }
128 
129 /**
130  * @brief This method implements the actions taken when entering the
131  *        STARTED state.
132  *
133  * @param[in]  object This parameter specifies the base object for which
134  *             the state transition is occurring.  This is cast into a
135  *             SCIF_SAS_IO_REQUEST object in the method implementation.
136  *
137  * @return none
138  */
139 static
140 void scif_sas_io_request_started_state_enter(
141    SCI_BASE_OBJECT_T *object
142 )
143 {
144    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
145 
146    SET_STATE_HANDLER(
147       &fw_io->parent,
148       scif_sas_io_request_state_handler_table,
149       SCI_BASE_REQUEST_STATE_STARTED
150    );
151 }
152 
153 /**
154  * @brief This method implements the actions taken when entering the
155  *        COMPLETED state.
156  *
157  * @param[in]  object This parameter specifies the base object for which
158  *             the state transition is occurring.  This is cast into a
159  *             SCIF_SAS_IO_REQUEST object in the method implementation.
160  *
161  * @return none
162  */
163 static
164 void scif_sas_io_request_completed_state_enter(
165    SCI_BASE_OBJECT_T *object
166 )
167 {
168    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
169 
170    SET_STATE_HANDLER(
171       &fw_io->parent,
172       scif_sas_io_request_state_handler_table,
173       SCI_BASE_REQUEST_STATE_COMPLETED
174    );
175 }
176 
177 /**
178  * @brief This method implements the actions taken when entering the
179  *        ABORTING state.
180  *
181  * @param[in]  object This parameter specifies the base object for which
182  *             the state transition is occurring.  This is cast into a
183  *             SCIF_SAS_IO_REQUEST object in the method implementation.
184  *
185  * @return none
186  */
187 static
188 void scif_sas_io_request_aborting_state_enter(
189    SCI_BASE_OBJECT_T *object
190 )
191 {
192    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
193 
194    SCIF_LOG_WARNING((
195       sci_base_object_get_logger(fw_io),
196       SCIF_LOG_OBJECT_IO_REQUEST | SCIF_LOG_OBJECT_TASK_MANAGEMENT,
197       "Domain:0x%x Device:0x%x IORequest:0x%x terminating\n",
198       fw_io->parent.device->domain, fw_io->parent.device, fw_io
199    ));
200 
201    SET_STATE_HANDLER(
202       &fw_io->parent,
203       scif_sas_io_request_state_handler_table,
204       SCI_BASE_REQUEST_STATE_ABORTING
205    );
206 
207    fw_io->parent.status = scif_sas_request_terminate_start(
208                              &fw_io->parent, fw_io->parent.core_object
209                           );
210 }
211 
212 /**
213  * @brief This method implements the actions taken when exiting the
214  *        ABORTING state.
215  *
216  * @param[in]  object This parameter specifies the base object for which
217  *             the state transition is occurring.  This is cast into a
218  *             SCIF_SAS_IO_REQUEST object in the method implementation.
219  *
220  * @return none
221  */
222 static
223 void scif_sas_io_request_aborting_state_exit(
224    SCI_BASE_OBJECT_T *object
225 )
226 {
227    SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T *)object;
228    scif_sas_request_terminate_complete(fw_request);
229 }
230 
231 /**
232  * @brief This method implements the actions taken when entering the
233  *        FINAL state.
234  *
235  * @param[in]  object This parameter specifies the base object for which
236  *             the state transition is occurring.  This is cast into a
237  *             SCIF_SAS_IO_REQUEST object in the method implementation.
238  *
239  * @return none
240  */
241 static
242 void scif_sas_io_request_final_state_enter(
243    SCI_BASE_OBJECT_T *object
244 )
245 {
246    SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T *)object;
247 
248    SET_STATE_HANDLER(
249       &fw_io->parent,
250       scif_sas_io_request_state_handler_table,
251       SCI_BASE_REQUEST_STATE_FINAL
252    );
253 }
254 
255 SCI_BASE_STATE_T scif_sas_io_request_state_table[SCI_BASE_REQUEST_MAX_STATES] =
256 {
257    {
258       SCI_BASE_REQUEST_STATE_INITIAL,
259       scif_sas_io_request_initial_state_enter,
260       NULL
261    },
262    {
263       SCI_BASE_REQUEST_STATE_CONSTRUCTED,
264       scif_sas_io_request_constructed_state_enter,
265       NULL
266    },
267    {
268       SCI_BASE_REQUEST_STATE_STARTED,
269       scif_sas_io_request_started_state_enter,
270       NULL
271    },
272    {
273       SCI_BASE_REQUEST_STATE_COMPLETED,
274       scif_sas_io_request_completed_state_enter,
275       NULL
276    },
277    {
278       SCI_BASE_REQUEST_STATE_ABORTING,
279       scif_sas_io_request_aborting_state_enter,
280       scif_sas_io_request_aborting_state_exit
281    },
282    {
283       SCI_BASE_REQUEST_STATE_FINAL,
284       scif_sas_io_request_final_state_enter,
285       NULL
286    },
287 };
288 
289