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 required to 59 * translate the SCSI REPORT LUNS command. 60 */ 61 62 #if !defined(DISABLE_SATI_REPORT_LUNS) 63 64 #include <dev/isci/scil/sati_report_luns.h> 65 #include <dev/isci/scil/sati_callbacks.h> 66 #include <dev/isci/scil/sati_util.h> 67 #include <dev/isci/scil/intel_ata.h> 68 #include <dev/isci/scil/intel_scsi.h> 69 70 /** 71 * @brief This method will translate the REPORT LUN SCSI command. This 72 * command is immediately completed, since there is no applicable 73 * ATA/ATAPI command. The data payload is written and SATI_COMPLETE 74 * is always returned. 75 * For more information on the parameters passed to this method, 76 * please reference sati_translate_command(). 77 * 78 * @return This method always indicates the translation is complete. 79 * @retval SATI_COMPLETE This value is always returned. 80 */ 81 SATI_STATUS sati_report_luns_translate_command( 82 SATI_TRANSLATOR_SEQUENCE_T * sequence, 83 void * scsi_io, 84 void * ata_io 85 ) 86 { 87 U8 * cdb = sati_cb_get_cdb_address(scsi_io); 88 89 // Set the data length based on the allocation length field in the CDB. 90 sequence->allocation_length = (sati_get_cdb_byte(cdb, 6) << 24) | 91 (sati_get_cdb_byte(cdb, 7) << 16) | 92 (sati_get_cdb_byte(cdb, 8) << 8) | 93 (sati_get_cdb_byte(cdb, 9)); 94 95 // The first 4 bytes indicate the length of the LUN list. Each 96 // LUN entry is 8 bytes. There is only ever LUN 0 for ATA/ATAPI 97 // devices. The value reported is: n-7, where n is the last byte 98 // offset (i.e. 15) in the REPORT LUN data. 99 sati_set_data_byte(sequence, scsi_io, 0, 0); 100 sati_set_data_byte(sequence, scsi_io, 1, 0); 101 sati_set_data_byte(sequence, scsi_io, 2, 0); 102 sati_set_data_byte(sequence, scsi_io, 3, 8); 103 104 // Bytes 4-7 are reserved. 105 sati_set_data_byte(sequence, scsi_io, 4, 0); 106 sati_set_data_byte(sequence, scsi_io, 5, 0); 107 sati_set_data_byte(sequence, scsi_io, 6, 0); 108 sati_set_data_byte(sequence, scsi_io, 7, 0); 109 110 // Add in our single LUN of zero. 111 sati_set_data_byte(sequence, scsi_io, 8, 0); 112 sati_set_data_byte(sequence, scsi_io, 9, 0); 113 sati_set_data_byte(sequence, scsi_io, 10, 0); 114 sati_set_data_byte(sequence, scsi_io, 11, 0); 115 sati_set_data_byte(sequence, scsi_io, 12, 0); 116 sati_set_data_byte(sequence, scsi_io, 13, 0); 117 sati_set_data_byte(sequence, scsi_io, 14, 0); 118 sati_set_data_byte(sequence, scsi_io, 15, 0); 119 120 return SATI_COMPLETE; 121 } 122 123 #endif // !defined(DISABLE_SATI_REPORT_LUNS) 124 125