0cf3f85364
(Patsburg) integrated SAS controller. sys/dev/isci contains all files specific to FreeBSD. sys/dev/isci/scil contains OS-agnostic library maintained by Intel and modified to best integrate into FreeBSD kernel build environment. Sponsored by: Intel Reviewed by: scottl
236 lines
8.1 KiB
C
236 lines
8.1 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/**
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* @file
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* @brief This file contains the implementation to translate
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* SCSI Read Buffer command based on the SAT spec.
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*/
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#if !defined(DISABLE_SATI_READ_BUFFER)
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#include <dev/isci/scil/sati_read_buffer.h>
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#include <dev/isci/scil/sati_callbacks.h>
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#include <dev/isci/scil/sati_util.h>
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/**
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* @brief This method will translate the SCSI Read Buffer command
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* into a corresponding ATA Read Buffer command.
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* For more information on the parameters passed to this method,
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* please reference sati_translate_command().
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*
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* @return Indicates if the command translation succeeded.
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* @retval SATI_SUCCESS indicates that the translation was supported and occurred
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* without error.
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* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
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* there is a translation failure.
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* @retval SATI_COMPLETE indicates that the translation was supported, occurred without
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* error, and no additional translation is necessary.
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*/
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SATI_STATUS sati_read_buffer_translate_command(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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void * scsi_io,
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void * ata_io
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)
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{
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U8 * cdb = sati_cb_get_cdb_address(scsi_io);
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SATI_STATUS status = SATI_FAILURE;
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U32 allocation_length;
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U32 buffer_offset;
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allocation_length = ((sati_get_cdb_byte(cdb, 6) << 16) |
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(sati_get_cdb_byte(cdb, 7) << 8) |
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(sati_get_cdb_byte(cdb, 8)));
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buffer_offset = ((sati_get_cdb_byte(cdb, 3) << 16) |
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(sati_get_cdb_byte(cdb, 4) << 8) |
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(sati_get_cdb_byte(cdb, 5)));
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sequence->allocation_length = allocation_length;
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switch(sati_get_cdb_byte(cdb, 1))
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{
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case SATI_READ_BUFFER_MODE_DATA:
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if((allocation_length == 512) && (buffer_offset == 0) &&
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(sati_get_cdb_byte(cdb, 2) == 0))
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{
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sati_ata_read_buffer_construct(ata_io, sequence);
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sequence->type = SATI_SEQUENCE_READ_BUFFER;
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sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
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status = SATI_SUCCESS;
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}
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else
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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break;
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case SATI_READ_BUFFER_MODE_DESCRIPTOR:
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//allocation legnth must be at least four to return translated data
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if(allocation_length < 4)
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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else
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{
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//figure out if we support other buffer id's
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sati_set_data_byte(sequence, scsi_io, 0, 0x09); //offset boundary
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sati_set_data_byte(sequence, scsi_io, 1, 0x00);
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sati_set_data_byte(sequence, scsi_io, 2, 0x02); //buffer capacity 0x200
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sati_set_data_byte(sequence, scsi_io, 3, 0x00);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_COMPLETE;
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}
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break;
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default:
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//Unspecified sat2v7, returning invalid cdb
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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return status;
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}
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/**
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* @brief This method will complete the Read Buffer Translation by copying the
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ATA response data into the SCSI request DATA buffer.
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* For more information on the parameters passed to this method,
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* please reference sati_translate_command().
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*
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* @return Indicates if the command translation succeeded.
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* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
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* there is a translation failure.
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* @retval SATI_COMPLETE indicates that the translation was supported, occurred without
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* error, and no additional translation is necessary.
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*/
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SATI_STATUS sati_read_buffer_translate_response(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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void * scsi_io,
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void * ata_io
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)
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{
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U8 * register_fis = sati_cb_get_d2h_register_fis_address(ata_io);
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U8 ata_status = (U8) sati_get_ata_status(register_fis);
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SATI_STATUS status = SATI_COMPLETE;
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if (ata_status & ATA_STATUS_REG_ERROR_BIT)
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ABORTED_COMMAND,
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SCSI_ASC_NO_ADDITIONAL_SENSE,
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SCSI_ASCQ_NO_ADDITIONAL_SENSE
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);
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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else
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{
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void * ata_data = sati_cb_get_ata_data_address(ata_io);
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if(ata_data == NULL)
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{
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status = SATI_FAILURE;
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}
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else
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{
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//copy ATA data into SCSI data buffer
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sati_copy_data(
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sequence,
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scsi_io,
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0,
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ata_data,
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512
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);
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}
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}
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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return status;
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}
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#endif //!defined(DISABLE_SATI_READ_BUFFER)
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