xref: /freebsd/sys/dev/isci/scil/scif_sas_stp_remote_device.h (revision 2e3507c25e42292b45a5482e116d278f5515d04d)
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 #ifndef _SCIF_SAS_STP_REMOTE_DEVICE_H_
55 #define _SCIF_SAS_STP_REMOTE_DEVICE_H_
56 
57 /**
58  * @file
59  *
60  * @brief This file contains the protected interface structures, constants,
61  *        and methods for the SCIF_SAS_STP_REMOTE_DEVICE object.
62  */
63 
64 #ifdef __cplusplus
65 extern "C" {
66 #endif // __cplusplus
67 
68 #include <dev/isci/scil/sati_device.h>
69 
70 #define SCIF_SAS_INVALID_NCQ_TAG 0xFF
71 
72 /**
73  * @struct SCIF_SAS_STP_REMOTE_DEVICE
74  *
75  * @brief The SCI SAS STP Framework remote device object abstracts the SAS
76  *        SATA/STP remote device level behavior for the framework component.
77  */
78 typedef struct SCIF_SAS_STP_REMOTE_DEVICE
79 {
80    /**
81     * This field contains all of the data utilized by the SCSI-to-ATA
82     * Translation Implementation (SATI).
83     */
84    SATI_DEVICE_T  sati_device;
85 
86    /**
87     * This field contains a list of free NCQ tags available for use in
88     * SATA Native Command Queuing (NCQ) requests.
89     */
90    U32 s_active;
91 
92 } SCIF_SAS_STP_REMOTE_DEVICE_T;
93 
94 struct SCIF_SAS_REMOTE_DEVICE;
95 void scif_sas_stp_remote_device_construct(
96    struct SCIF_SAS_REMOTE_DEVICE * fw_device
97 );
98 
99 U8 scif_sas_stp_remote_device_allocate_ncq_tag(
100    struct SCIF_SAS_REMOTE_DEVICE * fw_device
101 );
102 
103 void scif_sas_stp_remote_device_free_ncq_tag(
104    struct SCIF_SAS_REMOTE_DEVICE * fw_device,
105    U8                              ncq_tag
106 );
107 
108 struct SCIF_SAS_REQUEST *
109 scif_sas_stp_remote_device_get_request_by_ncq_tag(
110    struct SCIF_SAS_REMOTE_DEVICE * fw_device,
111    U8                              ncq_tag
112 );
113 
114 #ifdef __cplusplus
115 }
116 #endif // __cplusplus
117 
118 #endif // _SCIF_SAS_STP_REMOTE_DEVICE_H_
119 
120