xref: /freebsd/sys/dev/isci/scil/scif_sas_internal_io_request.h (revision 47dd1d1b619cc035b82b49a91a25544309ff95ae)
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.
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32  * modification, are permitted provided that the following conditions
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36  *     notice, this list of conditions and the following disclaimer.
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48  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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54  * $FreeBSD$
55  */
56 #ifndef _SCIF_SAS_INTERNAL_REQUEST_H_
57 #define _SCIF_SAS_INTERNAL_REQUEST_H_
58 
59 /**
60  * @file
61  *
62  * @brief This file contains the protected interface structures, constants,
63  *        and methods for the SCIF_SAS_INTERNAL_REQUEST object.
64  */
65 
66 #ifdef __cplusplus
67 extern "C" {
68 #endif // __cplusplus
69 
70 
71 #include <dev/isci/scil/scif_io_request.h>
72 #include <dev/isci/scil/sci_base_request.h>
73 #include <dev/isci/scil/scif_sas_request.h>
74 #include <dev/isci/scil/scif_sas_io_request.h>
75 #include <dev/isci/scil/scif_sas_remote_device.h>
76 #include <dev/isci/scil/intel_sas.h>
77 #include <dev/isci/scil/sci_controller_constants.h>
78 
79 struct SCIF_SAS_CONTROLLER;
80 
81 /**
82  * This constant dictates the maximum number of internal framework
83  *  IO request objects.  These objects are used for internal SMP requests
84  *  and for NCQ error handling.
85  */
86 #define SCIF_SAS_MAX_INTERNAL_REQUEST_COUNT (SCI_MAX_DOMAINS*4)
87 
88 /**
89  * This constant dictates the minimum number of internal framework
90  *  IO request objects when size-constrained.
91  */
92 #define SCIF_SAS_MIN_INTERNAL_REQUEST_COUNT (SCI_MAX_DOMAINS)
93 
94 /*
95  * This constant indicates the timeout value of an internal IO request
96  * in mili-seconds.
97  */
98 #define SCIF_SAS_INTERNAL_REQUEST_TIMEOUT   3000
99 
100 /**
101  * @struct SCIF_SAS_INTERNAL_IO_REQUEST
102  *
103  * @brief The SCIF_SAS_INTERNAL_IO_REQUEST object represents the internal SAS
104  *        IO request behavior for the framework component.
105  */
106 typedef struct SCIF_SAS_INTERNAL_IO_REQUEST
107 {
108    /**
109     * The SCIF_SAS_IO_REQUEST is the parent object for the
110     * SCIF_SAS_INTERNAL_IO_REQUEST object.
111     */
112    SCIF_SAS_IO_REQUEST_T  parent;
113 
114    /**
115     * This field will be utilized only by internal IO to handle timeout
116     * situation.
117     */
118    void * internal_io_timer;
119 
120 }SCIF_SAS_INTERNAL_IO_REQUEST_T;
121 
122 
123 U32 scif_sas_internal_request_get_object_size(
124    void
125 );
126 
127 SCI_STATUS scif_sas_internal_io_request_construct_smp(
128    struct SCIF_SAS_CONTROLLER  * fw_controller,
129    SCIF_SAS_REMOTE_DEVICE_T    * fw_remote_device,
130    void                        * internal_io_memory,
131    U16                           io_tag,
132    SMP_REQUEST_T               * smp_command
133 );
134 
135 SCI_STATUS scif_sas_internal_io_request_construct_stp(
136    SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_io
137 );
138 
139 void scif_sas_internal_io_request_timeout_handler(
140    void * fw_io
141 );
142 
143 void scif_sas_internal_io_request_complete(
144    struct SCIF_SAS_CONTROLLER     * fw_controller,
145    SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_io,
146    SCI_STATUS                       completion_status
147 );
148 
149 void scif_sas_internal_io_request_destruct(
150    struct SCIF_SAS_CONTROLLER     * fw_controller,
151    SCIF_SAS_INTERNAL_IO_REQUEST_T * fw_internal_io
152 );
153 
154 #ifdef __cplusplus
155 }
156 #endif // __cplusplus
157 
158 #endif // _SCIF_SAS_IO_REQUEST_H_
159 
160