xref: /freebsd/sys/dev/isci/scil/sati_synchronize_cache.c (revision b077aed33b7b6aefca7b17ddb250cf521f938613)
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  * @brief This file contains the method implementations for translating
61  *        the SCSI SYNCHRONIZE_CACHE (10, 16-byte) commands.
62  */
63 
64 #if !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
65 
66 #include <dev/isci/scil/sati_synchronize_cache.h>
67 #include <dev/isci/scil/sati_callbacks.h>
68 #include <dev/isci/scil/sati_util.h>
69 #include <dev/isci/scil/sati_translator_sequence.h>
70 
71 #include <dev/isci/scil/intel_ata.h>
72 #include <dev/isci/scil/intel_scsi.h>
73 #include <dev/isci/scil/intel_sat.h>
74 
75 //******************************************************************************
76 //* P R I V A T E   M E T H O D S
77 //******************************************************************************
78 
79 /**
80  * @brief This method performs the SCSI SYNCHRONIZE_CACHE 10 and 16 command translation
81  *        functionality common to all SYNCHRONIZE_CACHE command sizes.
82  *        This includes:
83  *        - setting the command register
84  *        - setting the device head register
85  *        - filling in fields in the SATI_TRANSLATOR_SEQUENCE object.
86  *        For more information on the parameters passed to this method,
87  *        please reference sati_translate_command().
88  *
89  * @return Indicate if the method was successfully completed.
90  * @retval SATI_SUCCESS This is returned in all other cases.
91  */
92 SATI_STATUS sati_synchronize_cache_translate_command(
93    SATI_TRANSLATOR_SEQUENCE_T * sequence,
94    void                       * scsi_io,
95    void                       * ata_io
96 )
97 {
98    U8 * cdb          = sati_cb_get_cdb_address(scsi_io);
99    U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
100 
101    sequence->type           = SATI_SEQUENCE_SYNCHRONIZE_CACHE;
102    sequence->protocol       = SAT_PROTOCOL_NON_DATA;
103    sequence->data_direction = SATI_DATA_DIRECTION_NONE;
104 
105    if (sati_get_cdb_byte(cdb, 1) & SCSI_SYNCHRONIZE_CACHE_IMMED_ENABLED)
106    {
107       //currently we ignore immed bit.
108       ;
109    }
110 
111    // Ensure the device supports the 48 bit feature set.
112    if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
113       sati_set_ata_command(register_fis, ATA_FLUSH_CACHE_EXT);
114    else
115       sati_set_ata_command(register_fis, ATA_FLUSH_CACHE);
116 
117    return SATI_SUCCESS;
118 }
119 
120 #endif // !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
121 
122