1 /*- 2 * This file is provided under a dual BSD/GPLv2 license. When using or 3 * redistributing this file, you may do so under either license. 4 * 5 * GPL LICENSE SUMMARY 6 * 7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of version 2 of the GNU General Public License as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 21 * The full GNU General Public License is included in this distribution 22 * in the file called LICENSE.GPL. 23 * 24 * BSD LICENSE 25 * 26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 27 * All rights reserved. 28 * 29 * Redistribution and use in source and binary forms, with or without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 33 * * Redistributions of source code must retain the above copyright 34 * notice, this list of conditions and the following disclaimer. 35 * * Redistributions in binary form must reproduce the above copyright 36 * notice, this list of conditions and the following disclaimer in 37 * the documentation and/or other materials provided with the 38 * distribution. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 41 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 42 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 43 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 44 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 46 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 47 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 48 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 49 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 51 */ 52 53 #include <sys/cdefs.h> 54 __FBSDID("$FreeBSD$"); 55 56 /** 57 * @file 58 * @brief This file contains all of the method implementations that 59 * can be utilized by a user to perform SCSI-to-ATA Translation. 60 * SATI adheres to the www.t10.org SAT specification. 61 * 62 * For situations where compliance is not observed, the SATI will 63 * return an error indication (most likely INVALID FIELD IN CDB sense data). 64 */ 65 66 #include <dev/isci/scil/sati.h> 67 #include <dev/isci/scil/sati_util.h> 68 #include <dev/isci/scil/sati_atapi.h> 69 #include <dev/isci/scil/sati_callbacks.h> 70 #include <dev/isci/scil/intel_ata.h> 71 #include <dev/isci/scil/intel_scsi.h> 72 #include <dev/isci/scil/intel_sat.h> 73 #include <dev/isci/scil/sati_report_luns.h> 74 75 76 //****************************************************************************** 77 //* P U B L I C M E T H O D S 78 //****************************************************************************** 79 80 SATI_STATUS sati_atapi_translate_command( 81 SATI_TRANSLATOR_SEQUENCE_T * sequence, 82 SATI_DEVICE_T * sati_device, 83 void * scsi_io, 84 void * atapi_io 85 ) 86 { 87 SATI_STATUS status; 88 U8 * cdb = sati_cb_get_cdb_address(scsi_io); 89 90 SATA_FIS_REG_H2D_T * register_fis = 91 (SATA_FIS_REG_H2D_T *)sati_cb_get_h2d_register_fis_address(atapi_io); 92 93 U8 io_direction = SATI_DATA_DIRECTION_IN; 94 95 //No sense response has been set for the translation sequence yet 96 sequence->is_sense_response_set = FALSE; 97 // Default to no translation response required 98 sequence->is_translate_response_required = FALSE; 99 100 sequence->number_data_bytes_set = 0; 101 sequence->device = sati_device; 102 sequence->command_specific_data.scratch = 0; 103 104 sati_cb_get_data_direction(scsi_io, &io_direction); 105 106 //set sat protocol. 107 if (io_direction == SATI_DATA_DIRECTION_NONE) 108 sequence->protocol = SAT_PROTOCOL_PACKET_NON_DATA; 109 else if (io_direction == SATI_DATA_DIRECTION_IN) 110 sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_IN; 111 else if (io_direction == SATI_DATA_DIRECTION_OUT) 112 sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_OUT; 113 114 // We don't send Report Luns command out. 115 if (sati_get_cdb_byte(cdb, 0) == SCSI_REPORT_LUNS) 116 { 117 status = sati_report_luns_translate_command( 118 sequence, scsi_io, atapi_io 119 ); 120 } 121 else if (sati_cb_get_lun(scsi_io) != 0) 122 { 123 sati_scsi_sense_data_construct( 124 sequence, 125 scsi_io, 126 SCSI_STATUS_CHECK_CONDITION, 127 SCSI_SENSE_ILLEGAL_REQUEST, 128 SCSI_ASC_LOGICAL_UNIT_NOT_SUPPORTED, 129 0 130 ); 131 status = SATI_FAILURE_CHECK_RESPONSE_DATA; 132 } 133 else 134 { 135 if (sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE) 136 { //Request Sense command is required. 137 U8 request_sense_cdb[SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH] = 138 {0x3, 0x0, 0x0, 0x0, 0x12, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; 139 140 //set the sequence->protocol to DATA_IN anyway; 141 sequence->protocol = SAT_PROTOCOL_PACKET_DMA_DATA_IN; 142 143 //set the cdb for Request Sense using command_specific_data field. 144 memcpy(sequence->command_specific_data.sati_atapi_data.request_sense_cdb, 145 request_sense_cdb, 146 SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH 147 ); 148 } 149 150 //build Packet Fis for any other command translation. 151 register_fis->command = ATA_PACKET; 152 register_fis->features |= ATA_PACKET_FEATURE_DMA; 153 154 register_fis->fis_type = SATA_FIS_TYPE_REGH2D; 155 register_fis->command_flag = 1; 156 157 status = SATI_SUCCESS; 158 } 159 160 return status; 161 } 162 163 164 SATI_STATUS sati_atapi_translate_command_response( 165 SATI_TRANSLATOR_SEQUENCE_T * sequence, 166 void * scsi_io, 167 void * atapi_io 168 ) 169 { 170 SATI_STATUS status = SATI_COMPLETE; 171 U8 * register_fis = sati_cb_get_d2h_register_fis_address(atapi_io); 172 U8 ata_status; 173 174 /** 175 * If the device fault bit is set in the status register, then 176 * set the sense data and return. 177 */ 178 ata_status = (U8) sati_get_ata_status(register_fis); 179 if (ata_status & ATA_STATUS_REG_DEVICE_FAULT_BIT) 180 { 181 sati_scsi_sense_data_construct( 182 sequence, 183 scsi_io, 184 SCSI_STATUS_CHECK_CONDITION, 185 SCSI_SENSE_HARDWARE_ERROR, 186 SCSI_ASC_INTERNAL_TARGET_FAILURE, 187 SCSI_ASCQ_INTERNAL_TARGET_FAILURE 188 ); 189 190 sequence->device->state = SATI_DEVICE_STATE_DEVICE_FAULT_OCCURRED; 191 192 return SATI_FAILURE_CHECK_RESPONSE_DATA; 193 } 194 else if (ata_status & ATA_STATUS_REG_ERROR_BIT) 195 { 196 //reset the register_fis. 197 memset(register_fis, 0, sizeof(SATA_FIS_REG_D2H_T)); 198 199 //Internal Request Sense command is needed. 200 sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE; 201 return SATI_SEQUENCE_INCOMPLETE; 202 } 203 204 return status; 205 } 206 207 void sati_atapi_translate_request_sense_response( 208 SATI_TRANSLATOR_SEQUENCE_T * sequence, 209 void * scsi_io, 210 void * atapi_io 211 ) 212 { 213 //sense data is already in place. 214 SCI_SSP_RESPONSE_IU_T * rsp_iu = (SCI_SSP_RESPONSE_IU_T*) 215 sati_cb_get_response_iu_address(scsi_io); 216 217 sati_scsi_common_response_iu_construct( 218 rsp_iu, 219 SCSI_STATUS_CHECK_CONDITION, 220 sati_scsi_get_sense_data_length(sequence, scsi_io), 221 SCSI_RESPONSE_DATA_PRES_SENSE_DATA 222 ); 223 224 sequence->is_sense_response_set = TRUE; 225 226 sequence->state = SATI_SEQUENCE_STATE_FINAL; 227 } 228 229 230 U32 sati_atapi_translate_number_of_bytes_transferred( 231 SATI_TRANSLATOR_SEQUENCE_T * sequence, 232 void * scsi_io, 233 void * atapi_io 234 ) 235 { 236 U8* cdb = sati_cb_get_cdb_address(scsi_io); 237 U8 response_data; 238 U32 data_length = 0; 239 240 switch(cdb[0]) 241 { 242 case SCSI_MODE_SENSE_10: 243 sati_cb_get_data_byte(scsi_io, 1, &response_data); 244 data_length = response_data+2; 245 break; 246 247 case 0x51: //READ DISC INFORMATION 248 sati_cb_get_data_byte(scsi_io, 1, &response_data); 249 data_length = response_data+2; 250 break; 251 252 default: 253 break; 254 } 255 256 return data_length; 257 } 258