xref: /freebsd/sys/dev/isci/scil/sati_test_unit_ready.c (revision f6a3b357e9be4c6423c85eff9a847163a0d307c8)
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 required to
61  *        translate the SCSI test unit ready command.
62  */
63 
64 #if !defined(DISABLE_SATI_TEST_UNIT_READY)
65 
66 #include <dev/isci/scil/sati_test_unit_ready.h>
67 #include <dev/isci/scil/sati_util.h>
68 #include <dev/isci/scil/sati_callbacks.h>
69 #include <dev/isci/scil/intel_ata.h>
70 #include <dev/isci/scil/intel_scsi.h>
71 
72 /**
73  * @brief This method will translate the test unit ready SCSI command into
74  *        an ATA CHECK POWER MODE command.
75  *        For more information on the parameters passed to this method,
76  *        please reference sati_translate_command().
77  *
78  * @return Indicate if the command translation succeeded.
79  * @retval SCI_SUCCESS This is returned if the command translation was
80  *         successful.
81  * @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if the
82  *         LBA field is not 0, the PMI bit is not 0.
83  */
84 SATI_STATUS sati_test_unit_ready_translate_command(
85    SATI_TRANSLATOR_SEQUENCE_T * sequence,
86    void                       * scsi_io,
87    void                       * ata_io
88 )
89 {
90    /**
91     * SAT dictates:
92     * - the device should be in a state to receive commands
93     * - a stopped device should cause sense data.
94     * - a format unit in progresss should cause sense data.
95     * - a self-test in progress should cause sense data.
96     * - a device fault occurred on previous request should cause sense data.
97     * - handling the removable media feature set isn't supported according to
98     *   SAT specifications.
99     */
100    if (sequence->device->state == SATI_DEVICE_STATE_STOPPED)
101    {
102       sati_scsi_sense_data_construct(
103          sequence,
104          scsi_io,
105          SCSI_STATUS_CHECK_CONDITION,
106          SCSI_SENSE_NOT_READY,
107          SCSI_ASC_INITIALIZING_COMMAND_REQUIRED,
108          SCSI_ASCQ_INITIALIZING_COMMAND_REQUIRED
109       );
110       return SATI_FAILURE_CHECK_RESPONSE_DATA;
111    }
112    else if (sequence->device->state
113             == SATI_DEVICE_STATE_SELF_TEST_IN_PROGRESS)
114    {
115       sati_scsi_sense_data_construct(
116          sequence,
117          scsi_io,
118          SCSI_STATUS_CHECK_CONDITION,
119          SCSI_SENSE_NOT_READY,
120          SCSI_ASC_LUN_SELF_TEST_IN_PROGRESS,
121          SCSI_ASCQ_LUN_SELF_TEST_IN_PROGRESS
122       );
123       return SATI_FAILURE_CHECK_RESPONSE_DATA;
124    }
125    else if (sequence->device->state
126             == SATI_DEVICE_STATE_FORMAT_UNIT_IN_PROGRESS)
127    {
128       sati_scsi_sense_data_construct(
129          sequence,
130          scsi_io,
131          SCSI_STATUS_CHECK_CONDITION,
132          SCSI_SENSE_NOT_READY,
133          SCSI_ASC_LUN_FORMAT_IN_PROGRESS,
134          SCSI_ASCQ_LUN_FORMAT_IN_PROGRESS
135       );
136       return SATI_FAILURE_CHECK_RESPONSE_DATA;
137    }
138 
139    // The CDB is properly formed and the device is ready.
140    sequence->type = SATI_SEQUENCE_TEST_UNIT_READY;
141 
142    sati_ata_check_power_mode_construct(ata_io, sequence);
143    return SATI_SUCCESS;
144 }
145 
146 /**
147  * @brief This method will translate the ATA CHECK POWER MODE register FIS
148  *        response into an appropriate SCSI response.
149  *        For more information on the parameters passed to this method,
150  *        please reference sati_translate_response().
151  *
152  * @return Indicate if the response translation succeeded.
153  * @retval SCI_SUCCESS This is returned if the data translation was
154  *         successful.
155  */
156 SATI_STATUS sati_test_unit_ready_translate_response(
157    SATI_TRANSLATOR_SEQUENCE_T * sequence,
158    void                       * scsi_io,
159    void                       * ata_io
160 )
161 {
162    U8 * register_fis = sati_cb_get_d2h_register_fis_address(ata_io);
163 
164    /**
165     * SAT dictates:
166     * - If the ATA CHECK POWER MODE command returns an error, then
167     *   return sense data indicating the LOGICAL UNIT DOES NOT RESPONSE
168     *   TO SELECTION.
169     * - All other cases are considered successful.
170     */
171    if (sati_get_ata_status(register_fis) & ATA_STATUS_REG_ERROR_BIT)
172    {
173       sati_scsi_sense_data_construct(
174          sequence,
175          scsi_io,
176          SCSI_STATUS_CHECK_CONDITION,
177          SCSI_SENSE_NOT_READY,
178          SCSI_ASC_LUN_NOT_RESPOND_TO_SELECTION,
179          SCSI_ASCQ_LUN_NOT_RESPOND_TO_SELECTION
180       );
181       return SATI_FAILURE_CHECK_RESPONSE_DATA;
182    }
183 
184    return SATI_COMPLETE;
185 }
186 
187 #endif // !defined(DISABLE_SATI_TEST_UNIT_READY)
188 
189