xref: /freebsd/sys/dev/isci/scil/sati_synchronize_cache.c (revision db33c6f3ae9d1231087710068ee4ea5398aacca7)
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 /**
57  * @file
58  * @brief This file contains the method implementations for translating
59  *        the SCSI SYNCHRONIZE_CACHE (10, 16-byte) commands.
60  */
61 
62 #if !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
63 
64 #include <dev/isci/scil/sati_synchronize_cache.h>
65 #include <dev/isci/scil/sati_callbacks.h>
66 #include <dev/isci/scil/sati_util.h>
67 #include <dev/isci/scil/sati_translator_sequence.h>
68 
69 #include <dev/isci/scil/intel_ata.h>
70 #include <dev/isci/scil/intel_scsi.h>
71 #include <dev/isci/scil/intel_sat.h>
72 
73 //******************************************************************************
74 //* P R I V A T E   M E T H O D S
75 //******************************************************************************
76 
77 /**
78  * @brief This method performs the SCSI SYNCHRONIZE_CACHE 10 and 16 command translation
79  *        functionality common to all SYNCHRONIZE_CACHE command sizes.
80  *        This includes:
81  *        - setting the command register
82  *        - setting the device head register
83  *        - filling in fields in the SATI_TRANSLATOR_SEQUENCE object.
84  *        For more information on the parameters passed to this method,
85  *        please reference sati_translate_command().
86  *
87  * @return Indicate if the method was successfully completed.
88  * @retval SATI_SUCCESS This is returned in all other cases.
89  */
90 SATI_STATUS sati_synchronize_cache_translate_command(
91    SATI_TRANSLATOR_SEQUENCE_T * sequence,
92    void                       * scsi_io,
93    void                       * ata_io
94 )
95 {
96    U8 * cdb          = sati_cb_get_cdb_address(scsi_io);
97    U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
98 
99    sequence->type           = SATI_SEQUENCE_SYNCHRONIZE_CACHE;
100    sequence->protocol       = SAT_PROTOCOL_NON_DATA;
101    sequence->data_direction = SATI_DATA_DIRECTION_NONE;
102 
103    if (sati_get_cdb_byte(cdb, 1) & SCSI_SYNCHRONIZE_CACHE_IMMED_ENABLED)
104    {
105       //currently we ignore immed bit.
106       ;
107    }
108 
109    // Ensure the device supports the 48 bit feature set.
110    if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
111       sati_set_ata_command(register_fis, ATA_FLUSH_CACHE_EXT);
112    else
113       sati_set_ata_command(register_fis, ATA_FLUSH_CACHE);
114 
115    return SATI_SUCCESS;
116 }
117 
118 #endif // !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
119 
120