1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/**
* @file
* @brief This file contains the implementation to translate
* SCSI Read Buffer command based on the SAT spec.
*/
#if !defined(DISABLE_SATI_READ_BUFFER)
#include <dev/isci/scil/sati_read_buffer.h>
#include <dev/isci/scil/sati_callbacks.h>
#include <dev/isci/scil/sati_util.h>
/**
* @brief This method will translate the SCSI Read Buffer command
* into a corresponding ATA Read Buffer command.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return Indicates if the command translation succeeded.
* @retval SATI_SUCCESS indicates that the translation was supported and occurred
* without error.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
* there is a translation failure.
* @retval SATI_COMPLETE indicates that the translation was supported, occurred without
* error, and no additional translation is necessary.
*/
SATI_STATUS sati_read_buffer_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
SATI_STATUS status = SATI_FAILURE;
U32 allocation_length;
U32 buffer_offset;
allocation_length = ((sati_get_cdb_byte(cdb, 6) << 16) |
(sati_get_cdb_byte(cdb, 7) << 8) |
(sati_get_cdb_byte(cdb, 8)));
buffer_offset = ((sati_get_cdb_byte(cdb, 3) << 16) |
(sati_get_cdb_byte(cdb, 4) << 8) |
(sati_get_cdb_byte(cdb, 5)));
sequence->allocation_length = allocation_length;
switch(sati_get_cdb_byte(cdb, 1))
{
case SATI_READ_BUFFER_MODE_DATA:
if((allocation_length == 512) && (buffer_offset == 0) &&
(sati_get_cdb_byte(cdb, 2) == 0))
{
sati_ata_read_buffer_construct(ata_io, sequence);
sequence->type = SATI_SEQUENCE_READ_BUFFER;
sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
status = SATI_SUCCESS;
}
else
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
sequence->state = SATI_SEQUENCE_STATE_FINAL;
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
break;
case SATI_READ_BUFFER_MODE_DESCRIPTOR:
//allocation legnth must be at least four to return translated data
if(allocation_length < 4)
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
sequence->state = SATI_SEQUENCE_STATE_FINAL;
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
//figure out if we support other buffer id's
sati_set_data_byte(sequence, scsi_io, 0, 0x09); //offset boundary
sati_set_data_byte(sequence, scsi_io, 1, 0x00);
sati_set_data_byte(sequence, scsi_io, 2, 0x02); //buffer capacity 0x200
sati_set_data_byte(sequence, scsi_io, 3, 0x00);
sequence->state = SATI_SEQUENCE_STATE_FINAL;
status = SATI_COMPLETE;
}
break;
default:
//Unspecified sat2v7, returning invalid cdb
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
sequence->state = SATI_SEQUENCE_STATE_FINAL;
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
return status;
}
/**
* @brief This method will complete the Read Buffer Translation by copying the
ATA response data into the SCSI request DATA buffer.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return Indicates if the command translation succeeded.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
* there is a translation failure.
* @retval SATI_COMPLETE indicates that the translation was supported, occurred without
* error, and no additional translation is necessary.
*/
SATI_STATUS sati_read_buffer_translate_response(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
U8 * register_fis = sati_cb_get_d2h_register_fis_address(ata_io);
U8 ata_status = (U8) sati_get_ata_status(register_fis);
SATI_STATUS status = SATI_COMPLETE;
if (ata_status & ATA_STATUS_REG_ERROR_BIT)
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ABORTED_COMMAND,
SCSI_ASC_NO_ADDITIONAL_SENSE,
SCSI_ASCQ_NO_ADDITIONAL_SENSE
);
status = SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
void * ata_data = sati_cb_get_ata_data_address(ata_io);
if(ata_data == NULL)
{
status = SATI_FAILURE;
}
else
{
//copy ATA data into SCSI data buffer
sati_copy_data(
sequence,
scsi_io,
0,
ata_data,
512
);
}
}
sequence->state = SATI_SEQUENCE_STATE_FINAL;
return status;
}
#endif //!defined(DISABLE_SATI_READ_BUFFER)
|
