f11c7f6305
The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
405 lines
14 KiB
C
405 lines
14 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 method implementations required to
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* translate the SCSI start stop unit command.
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*/
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#if !defined(DISABLE_SATI_START_STOP_UNIT)
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#include <dev/isci/scil/sati_start_stop_unit.h>
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#include <dev/isci/scil/sati_util.h>
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#include <dev/isci/scil/sati_callbacks.h>
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#include <dev/isci/scil/intel_ata.h>
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#include <dev/isci/scil/intel_scsi.h>
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/**
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* @brief This method will translate the start stop unit SCSI command into
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* various ATA commands depends on the value in POWER CONTIDTION, LOEJ
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* and START fields.
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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 Indicate if the command translation succeeded.
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* @retval SCI_SUCCESS This is returned if the command translation was
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* successful.
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* @retval SATI_FAILURE_CHECK_RESPONSE_DATA Please refer to spec.
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*
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*/
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SATI_STATUS sati_start_stop_unit_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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switch ( SATI_START_STOP_UNIT_POWER_CONDITION(cdb) )
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{
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case SCSI_START_STOP_UNIT_POWER_CONDITION_START_VALID:
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if ( SATI_START_STOP_UNIT_START_BIT(cdb) == 0
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&& SATI_START_STOP_UNIT_LOEJ_BIT(cdb) == 0 )
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{
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if ( SATI_START_STOP_UNIT_NO_FLUSH_BIT(cdb) == 1 )
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{
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//directly send ATA STANDBY_IMMEDIATE
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sati_ata_standby_immediate_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_STANDBY_IMMED;
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}
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else
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{
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if ( sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE )
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{
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//First, send ATA flush command.
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sati_ata_flush_cache_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_FLUSH_CACHE;
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//remember there is next step.
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sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
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}
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else
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{
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//the first step, flush cache command, has completed.
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//Send standby immediate now.
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sati_ata_standby_immediate_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_STANDBY_IMMED;
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}
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}
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}
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else if ( SATI_START_STOP_UNIT_START_BIT(cdb) == 0
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&& SATI_START_STOP_UNIT_LOEJ_BIT(cdb) == 1 )
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{
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//need to know whether the device supports removable medial feature set.
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if (sequence->device->capabilities & SATI_DEVICE_CAP_REMOVABLE_MEDIA)
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{
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//send ATA MEDIA EJECT command.
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sati_ata_media_eject_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_MEDIA_EJECT;
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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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return SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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}
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else if ( SATI_START_STOP_UNIT_START_BIT(cdb) == 1
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&& SATI_START_STOP_UNIT_LOEJ_BIT(cdb) == 0 )
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{
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//send an ATA verify command
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sati_ata_read_verify_sectors_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_READ_VERIFY_SECTORS;
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}
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else if ( SATI_START_STOP_UNIT_START_BIT(cdb) == 1
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&& SATI_START_STOP_UNIT_LOEJ_BIT(cdb) == 1 )
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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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return SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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break;
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//Power Condition Field is set to 0x01(Device to transition to Active state)
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case SCSI_START_STOP_UNIT_POWER_CONDITION_ACTIVE:
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if( sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE )
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{
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sati_ata_idle_construct(ata_io, sequence);
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sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
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sequence->command_specific_data.translated_command = ATA_IDLE;
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}
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else
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{
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sati_ata_read_verify_sectors_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_READ_VERIFY_SECTORS;
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}
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break;
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//Power Condition Field is set to 0x02(Device to transition to Idle state)
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case SCSI_START_STOP_UNIT_POWER_CONDITION_IDLE:
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if( SATI_START_STOP_UNIT_NO_FLUSH_BIT(cdb) == 0 &&
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sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE )
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{
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sati_ata_flush_cache_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_FLUSH_CACHE;
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sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
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}
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else
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{
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if( SATI_START_STOP_UNIT_POWER_CONDITION_MODIFIER(cdb) == 0 )
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{
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sati_ata_idle_immediate_construct(ata_io, sequence);
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}
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else
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{
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sati_ata_idle_immediate_unload_construct(ata_io, sequence);
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}
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sequence->command_specific_data.translated_command = ATA_IDLE_IMMED;
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}
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break;
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//Power Condition Field is set to 0x03(Device to transition to Standby state)
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case SCSI_START_STOP_UNIT_POWER_CONDITION_STANDBY:
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if( SATI_START_STOP_UNIT_NO_FLUSH_BIT(cdb) == 0 &&
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sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE )
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{
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sati_ata_flush_cache_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_FLUSH_CACHE;
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sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
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}
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else
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{
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sati_ata_standby_immediate_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_STANDBY_IMMED;
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}
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break;
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//Power Condition Field is set to 0xB(force Standby state)
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case SCSI_START_STOP_UNIT_POWER_CONDITION_FORCE_S_CONTROL:
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if( SATI_START_STOP_UNIT_NO_FLUSH_BIT(cdb) == 0 &&
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sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE )
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{
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sati_ata_flush_cache_construct(ata_io, sequence);
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sequence->command_specific_data.translated_command = ATA_FLUSH_CACHE;
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sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
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}
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else
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{
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sati_ata_standby_construct(ata_io, sequence, 0);
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sequence->command_specific_data.translated_command = ATA_STANDBY;
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}
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break;
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case SCSI_START_STOP_UNIT_POWER_CONDITION_LU_CONTROL:
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default: //TBD.
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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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return SATI_FAILURE_CHECK_RESPONSE_DATA;
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break;
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}
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if ( SATI_START_STOP_UNIT_IMMED_BIT(cdb) == 1 )
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{
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//@todo: return good status now.
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;
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}
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sequence->type = SATI_SEQUENCE_START_STOP_UNIT;
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return SATI_SUCCESS;
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}
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/**
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* @brief This method will translate the ATA command register FIS
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* response into an appropriate SCSI response for START STOP UNIT.
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* For more information on the parameters passed to this method,
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* please reference sati_translate_response().
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*
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* @return Indicate if the response translation succeeded.
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* @retval SCI_SUCCESS This is returned if the data translation was
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* successful.
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*/
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SATI_STATUS sati_start_stop_unit_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 * cdb = sati_cb_get_cdb_address(scsi_io);
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if (sati_get_ata_status(register_fis) & ATA_STATUS_REG_ERROR_BIT)
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{
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switch ( sequence->command_specific_data.translated_command )
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{
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case ATA_FLUSH_CACHE:
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case ATA_STANDBY_IMMED:
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case ATA_IDLE_IMMED:
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case ATA_IDLE:
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case ATA_STANDBY:
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//Note: There is lack of reference in spec of the error handling for
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//READ_VERIFY command.
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case ATA_READ_VERIFY_SECTORS:
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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_COMMAND_SEQUENCE_ERROR,
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SCSI_ASCQ_NO_ADDITIONAL_SENSE
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);
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break;
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case ATA_MEDIA_EJECT:
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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_MEDIA_LOAD_OR_EJECT_FAILED,
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SCSI_ASCQ_NO_ADDITIONAL_SENSE
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);
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break;
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default:
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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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break;
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}
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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return SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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else
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{
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switch ( sequence->command_specific_data.translated_command )
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{
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case ATA_READ_VERIFY_SECTORS:
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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_GOOD,
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SCSI_SENSE_NO_SENSE,
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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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//device state is now operational(active)
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sequence->device->state = SATI_DEVICE_STATE_OPERATIONAL;
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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break;
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case ATA_IDLE_IMMED:
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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_GOOD,
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SCSI_SENSE_NO_SENSE,
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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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sequence->device->state = SATI_DEVICE_STATE_IDLE;
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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break;
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//These three commands will be issued when the power condition is 0x00 or 0x03
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case ATA_MEDIA_EJECT:
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case ATA_STANDBY:
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case ATA_STANDBY_IMMED:
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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_GOOD,
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SCSI_SENSE_NO_SENSE,
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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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if( SATI_START_STOP_UNIT_POWER_CONDITION(cdb) == 0 )
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{
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sequence->device->state = SATI_DEVICE_STATE_STOPPED;
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}
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else
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{
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sequence->device->state = SATI_DEVICE_STATE_STANDBY;
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}
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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break;
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default:
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//FLUSH Cache command does not require any success handling
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break;
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}
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if (sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE)
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{
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return SATI_SEQUENCE_INCOMPLETE;
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}
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}
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return SATI_COMPLETE;
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}
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#endif // !defined(DISABLE_SATI_START_STOP_UNIT)
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