xref: /freebsd/sys/dev/isci/scil/scif_sas_task_request.h (revision 63a938566d524836885917d95bd491aa4400b181)
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.
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7  * GPL LICENSE SUMMARY
8  *
9  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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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
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23  * The full GNU General Public License is included in this distribution
24  * in the file called LICENSE.GPL.
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56 #ifndef _SCIF_SAS_TASK_REQUEST_H_
57 #define _SCIF_SAS_TASK_REQUEST_H_
58 
59 /**
60  * @file
61  *
62  * @brief This file contains the protected interface structures, constants,
63  *        and methods for the SCIF_SAS_TASK_REQUEST object.
64  */
65 
66 #ifdef __cplusplus
67 extern "C" {
68 #endif // __cplusplus
69 
70 #include <dev/isci/scil/sati_translator_sequence.h>
71 #include <dev/isci/scil/scif_task_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_internal_io_request.h>
75 #include <dev/isci/scil/intel_sas.h>
76 
77 /**
78  * @struct SCIF_SAS_TASK_REQUEST
79  *
80  * @brief The SCI SAS Framework Task request object abstracts the SAS task
81  *        management behavior for the framework component.  Additionally,
82  *        it provides a higher level of abstraction for the core task
83  *        request object.
84  */
85 typedef struct SCIF_SAS_TASK_REQUEST
86 {
87    /**
88     * The SCIF_SAS_REQUEST is the parent object for the
89     * SCIF_SAS_TASK_REQUEST object.
90     */
91    SCIF_SAS_REQUEST_T  parent;
92 
93    /**
94     * This field contains the number of current requests affected by
95     * this task management request.  This number indicates all of the
96     * requests terminated in the silicon (including previous task requests).
97     */
98    U16  affected_request_count;
99 
100    /**
101     * This field specifies the tag for the IO request or the tag to be
102     * managed for a task management request.
103     * This field is utilized during internal IO requests.
104     */
105    U16  io_tag_to_manage;
106 
107    /**
108     * This field will be utilized to specify the task management function
109     * of this task request.
110     */
111    SCI_SAS_TASK_MGMT_FUNCTION_T function;
112 
113 } SCIF_SAS_TASK_REQUEST_T;
114 
115 extern SCI_BASE_STATE_T scif_sas_task_request_state_table[];
116 extern SCI_BASE_REQUEST_STATE_HANDLER_T
117    scif_sas_task_request_state_handler_table[];
118 
119 void scif_sas_task_request_operation_complete(
120    SCIF_SAS_TASK_REQUEST_T * fw_task
121 );
122 
123 U8 scif_sas_task_request_get_function(
124    SCIF_SAS_TASK_REQUEST_T * fw_task
125 );
126 
127 SCI_STATUS scif_sas_internal_task_request_construct(
128    SCI_CONTROLLER_HANDLE_T      scif_controller,
129    SCI_REMOTE_DEVICE_HANDLE_T   scif_remote_device,
130    U16                          io_tag,
131    void                       * task_request_memory,
132    SCI_TASK_REQUEST_HANDLE_T  * scif_task_request,
133    U8                           task_function
134 );
135 
136 void scif_sas_internal_task_request_destruct(
137    SCIF_SAS_TASK_REQUEST_T * fw_internal_task
138 );
139 
140 #ifdef __cplusplus
141 }
142 #endif // __cplusplus
143 
144 #endif // _SCIF_SAS_TASK_REQUEST_H_
145 
146