sati_report_luns.c revision 230557
1230557Sjimharris/*- 2230557Sjimharris * This file is provided under a dual BSD/GPLv2 license. When using or 3230557Sjimharris * redistributing this file, you may do so under either license. 4230557Sjimharris * 5230557Sjimharris * GPL LICENSE SUMMARY 6230557Sjimharris * 7230557Sjimharris * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 8230557Sjimharris * 9230557Sjimharris * This program is free software; you can redistribute it and/or modify 10230557Sjimharris * it under the terms of version 2 of the GNU General Public License as 11230557Sjimharris * published by the Free Software Foundation. 12230557Sjimharris * 13230557Sjimharris * This program is distributed in the hope that it will be useful, but 14230557Sjimharris * WITHOUT ANY WARRANTY; without even the implied warranty of 15230557Sjimharris * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16230557Sjimharris * General Public License for more details. 17230557Sjimharris * 18230557Sjimharris * You should have received a copy of the GNU General Public License 19230557Sjimharris * along with this program; if not, write to the Free Software 20230557Sjimharris * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 21230557Sjimharris * The full GNU General Public License is included in this distribution 22230557Sjimharris * in the file called LICENSE.GPL. 23230557Sjimharris * 24230557Sjimharris * BSD LICENSE 25230557Sjimharris * 26230557Sjimharris * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 27230557Sjimharris * All rights reserved. 28230557Sjimharris * 29230557Sjimharris * Redistribution and use in source and binary forms, with or without 30230557Sjimharris * modification, are permitted provided that the following conditions 31230557Sjimharris * are met: 32230557Sjimharris * 33230557Sjimharris * * Redistributions of source code must retain the above copyright 34230557Sjimharris * notice, this list of conditions and the following disclaimer. 35230557Sjimharris * * Redistributions in binary form must reproduce the above copyright 36230557Sjimharris * notice, this list of conditions and the following disclaimer in 37230557Sjimharris * the documentation and/or other materials provided with the 38230557Sjimharris * distribution. 39230557Sjimharris * 40230557Sjimharris * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 41230557Sjimharris * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 42230557Sjimharris * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 43230557Sjimharris * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 44230557Sjimharris * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45230557Sjimharris * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 46230557Sjimharris * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47230557Sjimharris * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48230557Sjimharris * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49230557Sjimharris * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50230557Sjimharris * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51230557Sjimharris */ 52230557Sjimharris 53230557Sjimharris#include <sys/cdefs.h> 54230557Sjimharris__FBSDID("$FreeBSD$"); 55230557Sjimharris 56230557Sjimharris/** 57230557Sjimharris * @file 58230557Sjimharris * @brief This file contains the method implementations required to 59230557Sjimharris * translate the SCSI REPORT LUNS command. 60230557Sjimharris */ 61230557Sjimharris 62230557Sjimharris#if !defined(DISABLE_SATI_REPORT_LUNS) 63230557Sjimharris 64230557Sjimharris#include <dev/isci/scil/sati_report_luns.h> 65230557Sjimharris#include <dev/isci/scil/sati_callbacks.h> 66230557Sjimharris#include <dev/isci/scil/sati_util.h> 67230557Sjimharris#include <dev/isci/scil/intel_ata.h> 68230557Sjimharris#include <dev/isci/scil/intel_scsi.h> 69230557Sjimharris 70230557Sjimharris/** 71230557Sjimharris * @brief This method will translate the REPORT LUN SCSI command. This 72230557Sjimharris * command is immediately completed, since there is no applicable 73230557Sjimharris * ATA/ATAPI command. The data payload is written and SATI_COMPLETE 74230557Sjimharris * is always returned. 75230557Sjimharris * For more information on the parameters passed to this method, 76230557Sjimharris * please reference sati_translate_command(). 77230557Sjimharris * 78230557Sjimharris * @return This method always indicates the translation is complete. 79230557Sjimharris * @retval SATI_COMPLETE This value is always returned. 80230557Sjimharris */ 81230557SjimharrisSATI_STATUS sati_report_luns_translate_command( 82230557Sjimharris SATI_TRANSLATOR_SEQUENCE_T * sequence, 83230557Sjimharris void * scsi_io, 84230557Sjimharris void * ata_io 85230557Sjimharris) 86230557Sjimharris{ 87230557Sjimharris U8 * cdb = sati_cb_get_cdb_address(scsi_io); 88230557Sjimharris 89230557Sjimharris // Set the data length based on the allocation length field in the CDB. 90230557Sjimharris sequence->allocation_length = (sati_get_cdb_byte(cdb, 6) << 24) | 91230557Sjimharris (sati_get_cdb_byte(cdb, 7) << 16) | 92230557Sjimharris (sati_get_cdb_byte(cdb, 8) << 8) | 93230557Sjimharris (sati_get_cdb_byte(cdb, 9)); 94230557Sjimharris 95230557Sjimharris // The first 4 bytes indicate the length of the LUN list. Each 96230557Sjimharris // LUN entry is 8 bytes. There is only ever LUN 0 for ATA/ATAPI 97230557Sjimharris // devices. The value reported is: n-7, where n is the last byte 98230557Sjimharris // offset (i.e. 15) in the REPORT LUN data. 99230557Sjimharris sati_set_data_byte(sequence, scsi_io, 0, 0); 100230557Sjimharris sati_set_data_byte(sequence, scsi_io, 1, 0); 101230557Sjimharris sati_set_data_byte(sequence, scsi_io, 2, 0); 102230557Sjimharris sati_set_data_byte(sequence, scsi_io, 3, 8); 103230557Sjimharris 104230557Sjimharris // Bytes 4-7 are reserved. 105230557Sjimharris sati_set_data_byte(sequence, scsi_io, 4, 0); 106230557Sjimharris sati_set_data_byte(sequence, scsi_io, 5, 0); 107230557Sjimharris sati_set_data_byte(sequence, scsi_io, 6, 0); 108230557Sjimharris sati_set_data_byte(sequence, scsi_io, 7, 0); 109230557Sjimharris 110230557Sjimharris // Add in our single LUN of zero. 111230557Sjimharris sati_set_data_byte(sequence, scsi_io, 8, 0); 112230557Sjimharris sati_set_data_byte(sequence, scsi_io, 9, 0); 113230557Sjimharris sati_set_data_byte(sequence, scsi_io, 10, 0); 114230557Sjimharris sati_set_data_byte(sequence, scsi_io, 11, 0); 115230557Sjimharris sati_set_data_byte(sequence, scsi_io, 12, 0); 116230557Sjimharris sati_set_data_byte(sequence, scsi_io, 13, 0); 117230557Sjimharris sati_set_data_byte(sequence, scsi_io, 14, 0); 118230557Sjimharris sati_set_data_byte(sequence, scsi_io, 15, 0); 119230557Sjimharris 120230557Sjimharris return SATI_COMPLETE; 121230557Sjimharris} 122230557Sjimharris 123230557Sjimharris#endif // !defined(DISABLE_SATI_REPORT_LUNS) 124230557Sjimharris 125