8a0ddeb828
PR: kern/191717 Submitted by: martin@lispworks.com Approved by: re (gjb) MFC after: 3 days
515 lines
18 KiB
C
515 lines
18 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 passthru command.
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*/
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#if !defined(DISABLE_SATI_PASSTHROUGH)
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#include <dev/isci/scil/sati.h>
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#include <dev/isci/scil/sati_passthrough.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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#define PASSTHROUGH_CDB_PROTOCOL_MASK 0x1E
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#define PASSTHROUGH_CDB_EXTEND_MASK 0x1
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#define PASSTHROUGH_CDB_CK_COND_MASK 0x20
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#define PASSTHROUGH_CDB_T_DIR_MASK 0x8
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#define PASSTHROUGH_ISOLATE_BITS(cdb, index, mask, shift) (((sati_get_cdb_byte(cdb, index) & mask) >> shift))
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#define PASSTHROUGH_CDB_PROTOCOL(cdb) PASSTHROUGH_ISOLATE_BITS(cdb, 1, PASSTHROUGH_CDB_PROTOCOL_MASK, 1)
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#define PASSTHROUGH_CDB_EXTEND(cdb) PASSTHROUGH_ISOLATE_BITS(cdb, 1, PASSTHROUGH_CDB_EXTEND_MASK, 0)
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#define PASSTHROUGH_CDB_CK_COND(cdb) PASSTHROUGH_ISOLATE_BITS(cdb, 2, PASSTHROUGH_CDB_CK_COND_MASK, 5)
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#define PASSTHROUGH_CDB_T_DIR(cdb) PASSTHROUGH_ISOLATE_BITS(cdb, 2, PASSTHROUGH_CDB_T_DIR_MASK, 3)
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#define PASSTHROUGH_CDB_MULTIPLE_COUNT(cdb) (sati_get_cdb_byte(cdb, 1) >> 5)
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#define PASSTHROUGH_CDB_COMMAND(cdb, index) sati_get_cdb_byte(cdb, index)
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// Protocols
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#define PASSTHROUGH_PIO_DATA_IN 0x4
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#define PASSTHROUGH_PIO_DATA_OUT 0x5
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#define PASSTHROUGH_DMA 0x6
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#define PASSTHROUGH_UDMA_DATA_IN 0xA
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#define PASSTHROUGH_UDMA_DATA_OUT 0xB
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#define PASSTHROUGH_RETURN_RESPONSE 0xF
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/**
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* @brief This function will check the multiple_count field in the SCSI CDB
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* and if multiple_count is nonzero the function will check the
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* ATA command code. Only Read and Write Multiple commands are allowed
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* when multiple_count is a nonzero value.
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*
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* @param[in] cdb The SCSI cdb for the ATA pass-through command
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*
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* @return BOOL
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@retval TRUE - multiple_count is nonzero with a unsupported command
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@retval FALSE - multiple_count is zero or the command supports a nonzero value
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*/
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static
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BOOL sati_passthrough_multiple_count_error(
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U8 * cdb
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)
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{
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U8 ata_command_code;
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if(PASSTHROUGH_CDB_MULTIPLE_COUNT(cdb) > 0)
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{
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if(sati_get_cdb_byte(cdb, 0 ) == SCSI_ATA_PASSTHRU_12)
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{
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ata_command_code = PASSTHROUGH_CDB_COMMAND(cdb, 9);
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}
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else
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{
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ata_command_code = PASSTHROUGH_CDB_COMMAND(cdb, 14);
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}
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switch(ata_command_code)
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{ //MULTICOUNT bit is supported
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case ATA_READ_MULTIPLE:
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case ATA_READ_MULTIPLE_EXT:
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case ATA_WRITE_MULTIPLE:
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case ATA_WRITE_MULTIPLE_EXT:
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case ATA_WRITE_MULTIPLE_FUA_EXT:
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return FALSE;
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break;
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default:
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return TRUE;
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}
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}
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//MULTICOUNT bit is not set
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return FALSE;
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}
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/**
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* @brief This method will construct the sense data buffer in the user's
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* sense data buffer location. Additionally, it will set the user's
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* SCSI status.
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*
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* @param[in] sequence This parameter specifies the translation sequence
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* for which to construct the sense data.
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* @param[in] register_fis This parameter specifies the fis from which
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* to get the data.
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* @param[in,out] scsi_io This parameter specifies the user's IO request
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* for which to construct the sense data.
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* @param[in] scsi_status This parameter specifies the SCSI status
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* value for the user's IO request.
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* @param[in] sense_key This parameter specifies the sense key to
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* be set for the user's IO request.
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* @param[in] additional_sense_code This parameter specifies the
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* additional sense code (ASC) key to be set for the user's
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* IO request.
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* @param[in] additional_sense_code_qualifier This parameter specifies
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* the additional sense code qualifier (ASCQ) key to be set
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* for the user's IO request.
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*
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* @return none
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*/
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static
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void sati_passthrough_construct_sense(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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U8 * register_fis,
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void * scsi_io,
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U8 scsi_status,
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U8 sense_key,
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U8 additional_sense_code,
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U8 additional_sense_code_qualifier
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)
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{
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U8 * sense_data;
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U32 sense_len;
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U8 * cdb;
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unsigned char sector_count_upper;
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unsigned char lba_upper;
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#ifdef SATI_TRANSPORT_SUPPORTS_SAS
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SCI_SSP_RESPONSE_IU_T * rsp_iu = (SCI_SSP_RESPONSE_IU_T*)
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sati_cb_get_response_iu_address(scsi_io);
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sati_scsi_common_response_iu_construct(
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rsp_iu,
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scsi_status,
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SCSI_FIXED_SENSE_DATA_BASE_LENGTH,
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SCSI_RESPONSE_DATA_PRES_SENSE_DATA
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);
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sense_data = (U8*) rsp_iu->data;
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sense_len = SSP_RESPONSE_IU_MAX_DATA * 4; // dwords to bytes
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#else
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sense_data = sati_cb_get_sense_data_address(scsi_io);
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sense_len = sati_cb_get_sense_data_length(scsi_io);
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#endif // SATI_TRANSPORT_SUPPORTS_SAS
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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,
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sense_key,
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additional_sense_code,
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additional_sense_code_qualifier
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);
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cdb = sati_cb_get_cdb_address(scsi_io);
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if (sati_get_ata_sector_count_ext(register_fis) != 0) {
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sector_count_upper = 1;
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} else {
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sector_count_upper = 0;
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}
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if (sati_get_ata_lba_high_ext(register_fis) != 0 ||
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sati_get_ata_lba_mid_ext(register_fis) != 0 ||
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sati_get_ata_lba_low_ext(register_fis) != 0) {
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lba_upper = 1;
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} else {
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lba_upper = 0;
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}
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// Information section
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sati_set_sense_data_byte(sense_data, sense_len, 3, (U8)sati_get_ata_error(register_fis));
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sati_set_sense_data_byte(sense_data, sense_len, 4, (U8)sati_get_ata_status(register_fis));
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sati_set_sense_data_byte(sense_data, sense_len, 5, sati_get_ata_device(register_fis));
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sati_set_sense_data_byte(sense_data, sense_len, 6, sati_get_ata_sector_count(register_fis));
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// Command specific section
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sati_set_sense_data_byte(sense_data, sense_len, 8, (PASSTHROUGH_CDB_EXTEND(cdb) << 7) | (sector_count_upper << 6) | (lba_upper << 5));
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sati_set_sense_data_byte(sense_data, sense_len, 9, sati_get_ata_lba_low(register_fis));
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sati_set_sense_data_byte(sense_data, sense_len, 10, sati_get_ata_lba_mid(register_fis));
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sati_set_sense_data_byte(sense_data, sense_len, 11, sati_get_ata_lba_high(register_fis));
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sequence->is_sense_response_set = TRUE;
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}
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/**
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* @brief This method will verify that the T_DIR bit matches the protocol bit.
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* It will additionally set the direction on the sequence.
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*
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* @param[in,out] sequence This parameter specifies the translation sequence
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* for which to construct the sense data.
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* @param[in] cdb The CDB containing the passthrough command
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*
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* @return none
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*/
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static
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SATI_STATUS sati_passthrough_check_direction(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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U8 * cdb
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)
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{
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if ((sequence->protocol == PASSTHROUGH_PIO_DATA_IN) ||
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(sequence->protocol == PASSTHROUGH_UDMA_DATA_IN))
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{
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if (PASSTHROUGH_CDB_T_DIR(cdb) == 0x0)
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{
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return SATI_FAILURE;
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}
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else
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{
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sequence->data_direction = SATI_DATA_DIRECTION_IN;
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}
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}
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else if ((sequence->protocol == PASSTHROUGH_PIO_DATA_OUT) ||
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(sequence->protocol == PASSTHROUGH_UDMA_DATA_OUT))
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{
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if (PASSTHROUGH_CDB_T_DIR(cdb) == 0x1)
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{
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return SATI_FAILURE;
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}
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else
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{
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sequence->data_direction = SATI_DATA_DIRECTION_OUT;
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}
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}
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else
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{
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sequence->data_direction = SATI_DATA_DIRECTION_NONE;
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}
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return SATI_COMPLETE;
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}
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//******************************************************************************
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//* P U B L I C M E T H O D S
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//******************************************************************************
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/**
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* @brief This method will translate the SCSI Passthrough command
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* into the corresponding ATA command.
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*
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* @return Indicate if the command translation succeeded.
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* @retval SATI_SUCCESS This is returned if the command translation was
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* successful.
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* @retval SATI_FAILURE This is returned if the command translation was
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* unsuccessful
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*/
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SATI_STATUS sati_passthrough_12_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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SATI_STATUS status;
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U8 * cdb;
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U8 * register_fis;
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status = SATI_FAILURE;
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sequence->type = SATI_SEQUENCE_ATA_PASSTHROUGH_12;
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sequence->state = SATI_SEQUENCE_STATE_TRANSLATE_DATA;
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cdb = sati_cb_get_cdb_address(scsi_io);
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sequence->protocol = PASSTHROUGH_CDB_PROTOCOL (cdb);
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register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
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/*
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* CAM will send passthrough commands with protocol set to multiword
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* DMA even though no multiword DMA mode is selected on the device.
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* This is because some controllers (LSI) will only accept
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* ATA_PASSTHROUGH commands with DMA mode - not UDMA_IN/OUT.
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*
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* Since isci does not support multiword DMA, fix this up here.
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*/
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if (sequence->protocol == PASSTHROUGH_DMA)
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{
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if (PASSTHROUGH_CDB_T_DIR(cdb) == 0x1)
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{
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sequence->protocol = PASSTHROUGH_UDMA_DATA_IN;
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}
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else
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{
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sequence->protocol = PASSTHROUGH_UDMA_DATA_OUT;
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}
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}
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if (sati_passthrough_check_direction(sequence, cdb) != SATI_COMPLETE
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|| sati_passthrough_multiple_count_error(cdb)
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)
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{
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// Fail due to mismatch
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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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sati_set_ata_features(register_fis, sati_get_cdb_byte(cdb, 3));
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sati_set_ata_sector_count(register_fis, sati_get_cdb_byte(cdb, 4));
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sati_set_ata_lba_low(register_fis, sati_get_cdb_byte(cdb, 5));
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sati_set_ata_lba_mid(register_fis, sati_get_cdb_byte(cdb, 6));
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sati_set_ata_lba_high(register_fis, sati_get_cdb_byte(cdb, 7));
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sati_set_ata_device_head(register_fis, sati_get_cdb_byte(cdb, 8));
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sati_set_ata_command(register_fis, sati_get_cdb_byte(cdb, 9));
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sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
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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 SCSI Passthrough command
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* into the corresponding ATA command.
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*
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* @return Indicate if the command translation succeeded.
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* @retval SATI_SUCCESS This is returned if the command translation was
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* successful.
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* @retval SATI_FAILURE This is returned if the command translation was
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* unsuccessful
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*/
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SATI_STATUS sati_passthrough_16_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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SATI_STATUS status;
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U8 * cdb;
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U8 * register_fis;
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status = SATI_FAILURE;
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sequence->type = SATI_SEQUENCE_ATA_PASSTHROUGH_16;
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sequence->state = SATI_SEQUENCE_STATE_TRANSLATE_DATA;
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cdb = sati_cb_get_cdb_address(scsi_io);
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sequence->protocol = PASSTHROUGH_CDB_PROTOCOL(cdb);
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register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
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/*
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* CAM will send passthrough commands with protocol set to multiword
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* DMA even though no multiword DMA mode is selected on the device.
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* This is because some controllers (LSI) will only accept
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* ATA_PASSTHROUGH commands with DMA mode - not UDMA_IN/OUT.
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*
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* Since isci does not support multiword DMA, fix this up here.
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*/
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if (sequence->protocol == PASSTHROUGH_DMA)
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{
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if (PASSTHROUGH_CDB_T_DIR(cdb) == 0x1)
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{
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sequence->protocol = PASSTHROUGH_UDMA_DATA_IN;
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}
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else
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{
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sequence->protocol = PASSTHROUGH_UDMA_DATA_OUT;
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}
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}
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if (sati_passthrough_check_direction(sequence, cdb) != SATI_COMPLETE
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|| sati_passthrough_multiple_count_error(cdb)
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)
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{
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// Fail due to mismatch
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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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if (PASSTHROUGH_CDB_EXTEND(cdb) == 1)
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{
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sati_set_ata_features_exp(register_fis, sati_get_cdb_byte(cdb, 3));
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sati_set_ata_sector_count_exp(register_fis, sati_get_cdb_byte(cdb, 5));
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sati_set_ata_lba_low_exp(register_fis, sati_get_cdb_byte(cdb, 7));
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sati_set_ata_lba_mid_exp(register_fis, sati_get_cdb_byte(cdb, 9));
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sati_set_ata_lba_high_exp(register_fis, sati_get_cdb_byte(cdb, 11));
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}
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if (PASSTHROUGH_CDB_CK_COND(cdb) ||
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PASSTHROUGH_CDB_PROTOCOL(cdb) == PASSTHROUGH_RETURN_RESPONSE)
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{
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sequence->is_translate_response_required = TRUE;
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}
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sati_set_ata_features(register_fis, sati_get_cdb_byte(cdb, 4));
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sati_set_ata_sector_count(register_fis, sati_get_cdb_byte(cdb, 6));
|
|
sati_set_ata_lba_low(register_fis, sati_get_cdb_byte(cdb, 8));
|
|
sati_set_ata_lba_mid(register_fis, sati_get_cdb_byte(cdb, 10));
|
|
sati_set_ata_lba_high(register_fis, sati_get_cdb_byte(cdb, 12));
|
|
sati_set_ata_device_head(register_fis, sati_get_cdb_byte(cdb, 13));
|
|
sati_set_ata_command(register_fis, sati_get_cdb_byte(cdb, 14));
|
|
|
|
sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
|
|
|
|
return SATI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* @brief This method will translate the ATA command
|
|
* response
|
|
*
|
|
* @return Indicate if the command translation succeeded.
|
|
* @retval SATI_COMPLETE This is returned if the command translation was
|
|
* successful.
|
|
* @retval SATI_FAILURE This is returned if the command translation was
|
|
* unsuccessful
|
|
*/
|
|
SATI_STATUS sati_passthrough_translate_response(
|
|
SATI_TRANSLATOR_SEQUENCE_T * sequence,
|
|
void * scsi_io,
|
|
void * ata_io
|
|
)
|
|
{
|
|
U8 * cdb;
|
|
U8 * register_fis;
|
|
|
|
cdb = sati_cb_get_cdb_address(scsi_io);
|
|
register_fis = sati_cb_get_d2h_register_fis_address(ata_io);
|
|
|
|
// Check for device errors
|
|
if (sati_get_ata_status(register_fis) & ATA_STATUS_REG_ERROR_BIT)
|
|
{
|
|
sati_translate_error(sequence, scsi_io, (U8)sati_get_ata_error(register_fis));
|
|
return SATI_FAILURE_CHECK_RESPONSE_DATA;
|
|
}
|
|
|
|
sequence->state = SATI_SEQUENCE_STATE_FINAL;
|
|
|
|
// If the user set the check condition bit, fill out the sense data
|
|
if (PASSTHROUGH_CDB_CK_COND(cdb) ||
|
|
PASSTHROUGH_CDB_PROTOCOL(cdb) == PASSTHROUGH_RETURN_RESPONSE)
|
|
{
|
|
sati_passthrough_construct_sense(
|
|
sequence,
|
|
register_fis,
|
|
scsi_io,
|
|
SCSI_STATUS_CHECK_CONDITION,
|
|
SCSI_SENSE_RECOVERED_ERROR,
|
|
SCSI_ASC_NO_ADDITIONAL_SENSE,
|
|
SCSI_ASCQ_ATA_PASS_THROUGH_INFORMATION_AVAILABLE
|
|
);
|
|
return SATI_FAILURE_CHECK_RESPONSE_DATA;
|
|
}
|
|
|
|
return SATI_COMPLETE;
|
|
}
|
|
|
|
#endif // !defined(DISABLE_SATI_PASSTHROUGH)
|