/*- * 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 __FBSDID("$FreeBSD$"); /** * @file * @brief This file contains the method implementations required to * translate the SCSI read capacity (10 byte) command. */ #if !defined(DISABLE_SATI_READ_CAPACITY) #include #include #include #include #include /** * @brief This method will translate the read capacity 10 SCSI command into * an ATA IDENTIFY DEVICE command. * For more information on the parameters passed to this method, * please reference sati_translate_command(). * * @return Indicate if the command translation succeeded. * @retval SCI_SUCCESS This is returned if the command translation was * successful. * @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if the * LBA field is not 0, the PMI bit is not 0. */ SATI_STATUS sati_read_capacity_10_translate_command( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * ata_io ) { U8 * cdb = sati_cb_get_cdb_address(scsi_io); /** * SAT dictates: * - the LBA field must be 0 * - the PMI bit must be 0 */ if ( ( (sati_get_cdb_byte(cdb, 2) != 0) || (sati_get_cdb_byte(cdb, 3) != 0) || (sati_get_cdb_byte(cdb, 4) != 0) || (sati_get_cdb_byte(cdb, 5) != 0) ) || ((sati_get_cdb_byte(cdb, 8) & SCSI_READ_CAPACITY_PMI_BIT_ENABLE) == 1) ) { 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 ); return SATI_FAILURE_CHECK_RESPONSE_DATA; } // The CDB is properly formed. sequence->allocation_length = SCSI_READ_CAPACITY_10_DATA_LENGTH; sequence->type = SATI_SEQUENCE_READ_CAPACITY_10; sati_ata_identify_device_construct(ata_io, sequence); return SATI_SUCCESS; } /** * @brief This method will translate the read capacity 16 SCSI command into * an ATA IDENTIFY DEVICE command. * For more information on the parameters passed to this method, * please reference sati_translate_command(). * * @return Indicate if the command translation succeeded. * @retval SCI_SUCCESS This is returned if the command translation was * successful. * @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if the * LBA field is not 0, the PMI bit is not 0. */ SATI_STATUS sati_read_capacity_16_translate_command( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * scsi_io, void * ata_io ) { U8 * cdb = sati_cb_get_cdb_address(scsi_io); /** * SAT dictates: * - the LBA field must be 0 * - the PMI bit must be 0 */ if ( ( (sati_get_cdb_byte(cdb, 2) != 0) || (sati_get_cdb_byte(cdb, 3) != 0) || (sati_get_cdb_byte(cdb, 4) != 0) || (sati_get_cdb_byte(cdb, 5) != 0) || (sati_get_cdb_byte(cdb, 6) != 0) || (sati_get_cdb_byte(cdb, 7) != 0) || (sati_get_cdb_byte(cdb, 8) != 0) || (sati_get_cdb_byte(cdb, 9) != 0) ) || ((sati_get_cdb_byte(cdb, 14) & SCSI_READ_CAPACITY_PMI_BIT_ENABLE) == 1) ) { 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 ); return SATI_FAILURE_CHECK_RESPONSE_DATA; } // The CDB is properly formed. sequence->allocation_length = (sati_get_cdb_byte(cdb, 10) << 24) | (sati_get_cdb_byte(cdb, 11) << 16) | (sati_get_cdb_byte(cdb, 12) << 8) | (sati_get_cdb_byte(cdb, 13)); sequence->type = SATI_SEQUENCE_READ_CAPACITY_16; sati_ata_identify_device_construct(ata_io, sequence); return SATI_SUCCESS; } /** * @brief This method will translate the ATA Identify Device data into * SCSI read capacity 10 data. * For more information on the parameters passed to this method, * please reference sati_translate_data(). * * @return none */ void sati_read_capacity_10_translate_data( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * ata_input_data, void * scsi_io ) { U32 lba_low = 0; U32 lba_high = 0; U32 sector_size = 0; // Extract the sector information (sector size, logical blocks) from // the retrieved ATA identify device data. sati_ata_identify_device_get_sector_info( (ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data, &lba_high, &lba_low, §or_size ); // SATA drives report a value that is one LBA larger than the last LBA. // SCSI wants the last LBA. Make the correction here. lba_low is // always decremented since it is an unsigned long the value 0 will // wrap to 0xFFFFFFFF. if ((lba_low == 0) && (lba_high == 0)) lba_high -= 1; lba_low -= 1; if(lba_high != 0) { sati_set_data_byte(sequence, scsi_io, 0, 0xFF); sati_set_data_byte(sequence, scsi_io, 1, 0xFF); sati_set_data_byte(sequence, scsi_io, 2, 0xFF); sati_set_data_byte(sequence, scsi_io, 3, 0xFF); } else { // Build CDB for Read Capacity 10 // Fill in the Logical Block Address bytes. sati_set_data_byte(sequence, scsi_io, 0, (U8)((lba_low >> 24) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 1, (U8)((lba_low >> 16) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 2, (U8)((lba_low >> 8) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 3, (U8)(lba_low & 0xFF)); } // Fill in the sector size field. sati_set_data_byte(sequence, scsi_io, 4, (U8)((sector_size >> 24) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 5, (U8)((sector_size >> 16) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 6, (U8)((sector_size >> 8) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 7, (U8)(sector_size & 0xFF)); } /** * @brief This method will translate the ATA Identify Device data into * SCSI read capacity 16 data. * For more information on the parameters passed to this method, * please reference sati_translate_data(). * * @return none */ void sati_read_capacity_16_translate_data( SATI_TRANSLATOR_SEQUENCE_T * sequence, void * ata_input_data, void * scsi_io ) { U32 lba_low = 0; U32 lba_high = 0; U32 sector_size = 0; ATA_IDENTIFY_DEVICE_DATA_T * identify_device_data; U16 physical_per_logical_enable_bit = 0; U8 physical_per_logical_sector_exponent = 0; U16 physical_per_logical_sector = 0; U16 logical_sector_alignment = 0; U16 scsi_logical_sector_alignment = 0; U8 byte14 = 0; //A number of data fields need to be extracted from ATA identify device data identify_device_data = (ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data; // Extract the sector information (sector size, logical blocks) from // the retrieved ATA identify device data. sati_ata_identify_device_get_sector_info( (ATA_IDENTIFY_DEVICE_DATA_T*)ata_input_data, &lba_high, &lba_low, §or_size ); // SATA drives report a value that is one LBA larger than the last LBA. // SCSI wants the last LBA. Make the correction here. lba_low is // always decremented since it is an unsigned long the value 0 will // wrap to 0xFFFFFFFF. if ((lba_low == 0) && (lba_high == 0)) lba_high -= 1; lba_low -= 1; // Build the CDB for Read Capacity 16 // Fill in the Logical Block Address bytes. sati_set_data_byte(sequence, scsi_io, 0, (U8)((lba_high >> 24) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 1, (U8)((lba_high >> 16) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 2, (U8)((lba_high >> 8) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 3, (U8)(lba_high & 0xFF)); sati_set_data_byte(sequence, scsi_io, 4, (U8)((lba_low >> 24) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 5, (U8)((lba_low >> 16) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 6, (U8)((lba_low >> 8) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 7, (U8)(lba_low & 0xFF)); //Fill in the sector size field. sati_set_data_byte(sequence, scsi_io, 8, (U8)((sector_size >> 24) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 9, (U8)((sector_size >> 16) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 10, (U8)((sector_size >> 8) & 0xFF)); sati_set_data_byte(sequence, scsi_io, 11, (U8)(sector_size & 0xFF)); //Explicitly set byte 12 to 0. SATI requires that all bytes in the data //response be explicitly set to some value. sati_set_data_byte(sequence, scsi_io, 12, 0); //Check Bit 13 of ATA_IDENTIFY_DEVICE_DATA physical_logical_sector_info //(Word 106) is enabled physical_per_logical_enable_bit = (identify_device_data->physical_logical_sector_info & ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_ENABLE); //Extract the Physical per logical sector exponent field and calculate //Physical per logical sector value physical_per_logical_sector_exponent = (U8) (identify_device_data->physical_logical_sector_info & ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_MASK); physical_per_logical_sector = 1 << (physical_per_logical_sector_exponent); //If the data is valid, fill in the logical blocks per physical block exponent field. //Else set logical blocks per physical block exponent to 1 if (physical_per_logical_enable_bit != 0) sati_set_data_byte( sequence, scsi_io, 13, (U8)(physical_per_logical_sector_exponent & 0xFF) ); else sati_set_data_byte(sequence, scsi_io, 13, 0); //Fill in the lowest aligned logical block address field. logical_sector_alignment = identify_device_data->logical_sector_alignment; if (logical_sector_alignment == 0) scsi_logical_sector_alignment = 0; else scsi_logical_sector_alignment = (physical_per_logical_sector - logical_sector_alignment) % physical_per_logical_sector; //Follow SAT for reporting tprz and tpe if ((sequence->device->capabilities & SATI_DEVICE_CAP_DSM_TRIM_SUPPORT) && (sequence->device->capabilities & SATI_DEVICE_CAP_DETERMINISTIC_READ_AFTER_TRIM)) { // tpe byte14 |= 0x80; // tprz if (sequence->device->capabilities & SATI_DEVICE_CAP_READ_ZERO_AFTER_TRIM) byte14 |= 0x40; } sati_set_data_byte( sequence, scsi_io, 14, (U8)(((scsi_logical_sector_alignment >>8) & 0x3F) | byte14)); sati_set_data_byte( sequence, scsi_io, 15, (U8)(scsi_logical_sector_alignment & 0xFF)); } #endif // !defined(DISABLE_SATI_READ_CAPACITY)