482 lines
16 KiB
C
482 lines
16 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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* $FreeBSD$
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*/
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#ifndef _SATI_CALLBACKS_H_
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#define _SATI_CALLBACKS_H_
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/**
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* @file
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* @brief This file contains the default callback bindings for SATI. These
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* must be overridden by the SATI user to ensure successful operation.
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*/
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#include <dev/isci/scil/sati_types.h>
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#include <dev/isci/scil/intel_sas.h>
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#ifdef SATI_DEFAULT_DECLARATION
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/**
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* @brief This callback method asks the user to provide the address for
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* the command descriptor block (CDB) associated with this IO request.
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*
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* @param[in] scsi_io This parameter points to the user's IO request object
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* It is a cookie that allows the user to provide the necessary
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* information for this callback.
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*
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* @return This method returns the virtual address of the CDB.
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*/
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void * sati_cb_get_cdb_address(
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void * scsi_io
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);
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/**
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* @brief This callback method asks the user to provide the length of
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* the command descriptor block (CDB) associated with this IO request.
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*
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* @param[in] scsi_io This parameter points to the user's IO request object.
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* It is a cookie that allows the user to provide the necessary
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* information for this callback.
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*
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* @return This method returns the length of the CDB.
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*/
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U32 sati_cb_get_cdb_length(
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void * scsi_io
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);
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/**
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* @brief This callback method asks the user to provide the data transfer
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* direction of this IO request.
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*
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* @param[in] scsi_io This parameter points to the user's IO request object.
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* It is a cookie that allows the user to provide the necessary
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* information for this callback.
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* @param[in] io_direction to return
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* @return This method returns the length of the CDB.
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*/
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void sati_cb_get_data_direction(
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void * scsi_io,
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U8 * io_direction
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);
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/**
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* @brief This callback method sets a value into the data buffer associated
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* with the supplied user SCSI IO request at the supplied byte offset.
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*
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* @note SATI does not manage the user scatter-gather-list. As a result,
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* the user must ensure that data is written according to the SGL.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to set the data buffer byte.
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* @param[in] byte_offset This parameter specifies the offset into the
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* data buffer at which to set the value.
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* @param[in] value This parameter specifies the new value to be set into
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* the data buffer.
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*
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* @return none
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*/
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void sati_cb_set_data_byte(
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void * scsi_io,
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U32 byte_offset,
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U8 value
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);
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/**
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* @brief This callback method gets a value from the data buffer associated
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* with the supplied user SCSI IO request at the supplied byte offset.
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*
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* @note SATI does not manage the user scatter-gather-list. As a result,
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* the user must ensure that data is written according to the SGL.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to get the data buffer byte.
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* @param[in] byte_offset This parameter specifies the offset into the
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* data buffer at which to get the value.
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* @param[in] value This parameter specifies the new value to be get into
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* the data buffer.
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*
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* @return none
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*/
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void sati_cb_get_data_byte(
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void * scsi_io,
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U32 byte_offset,
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U8 * value
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);
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/**
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* @brief This callback method gets the task type for the SCSI task
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* request.
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*
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* @param[in] scsi_task This parameter specifies the user's SCSI Task request.
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* It is a cookie that allows the user to provide the necessary
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* information for this callback.
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*
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* @return This method returns one of the enumeration values for
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* SCSI_TASK_MGMT_REQUEST_CODES
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*/
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U8 sati_cb_get_task_function(
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void * scsi_task
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);
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#ifdef SATI_TRANSPORT_SUPPORTS_SAS
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/**
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* @brief This callback method retrieves the address of the user's SSP
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* response IU buffer.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to retreive the location of the response buffer to
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* be written.
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*
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* @return This method returns the address of the response data buffer.
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*/
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void * sati_cb_get_response_iu_address(
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void * scsi_io
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);
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#else // SATI_TRANSPORT_SUPPORTS_SAS
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/**
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* @brief This callback method retrieves the address of the user's sense data
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* buffer.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to retreive the location of the sense buffer to
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* be written.
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*
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* @return This method returns the address of the sense data buffer.
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*/
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U8* sati_cb_get_sense_data_address(
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void * scsi_io
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);
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/**
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* @brief This callback method retrieves the length of the user's sense data
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* buffer.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to retreive the location of the sense buffer to
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* be written.
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*
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* @return This method returns the length of the sense data buffer.
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*/
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U32 sati_cb_get_sense_data_length(
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void * scsi_io
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);
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/**
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* @brief This callback method sets the SCSI status to be associated with
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* the supplied user's SCSI IO request.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to set the SCSI status.
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* @param[in] status This parameter specifies the SCSI status to be
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* associated with the supplied user's SCSI IO request.
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*
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* @return none
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*/
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void sati_cb_set_scsi_status(
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void * scsi_io,
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U8 status
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);
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#endif // SATI_TRANSPORT_SUPPORTS_SAS
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/**
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* @brief This method retrieves the ATA task file (register FIS) relating to
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* the host to device command values.
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*
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* @param[in] ata_io This parameter specifies the user's ATA IO request
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* from which to retrieve the h2d register FIS address.
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*
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* @return This method returns the address for the host to device register
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* FIS.
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*/
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U8 * sati_cb_get_h2d_register_fis_address(
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void * ata_io
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);
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/**
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* @brief This method retrieves the ATA task file (register FIS) relating to
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* the device to host reponse values.
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*
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* @param[in] ata_io This parameter specifies the user's ATA IO request
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* from which to retrieve the d2h register FIS address.
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*
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* @return This method returns the address for the device to host register
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* FIS.
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*/
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U8 * sati_cb_get_d2h_register_fis_address(
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void * ata_io
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);
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/**
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* @brief This method retrieves the address where the ATA data received
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* from the device is stored.
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*
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* @param[in] ata_io This parameter specifies the user's ATA IO request
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* from which to retrieve the received data address.
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*
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* @return This method returns the address for the data received from
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* the remote device.
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*/
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void * sati_cb_get_ata_data_address(
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void * ata_io
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);
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/**
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* @brief This method allocates a DMA buffer
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* that can be utilized for small (<=4K) DMA sequences.
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* This is utilized to translate SCSI UNMAP requests.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to set the SCSI status.
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* @param[in] length in bytes of the buffer to be allocated
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* @param[in] virtual address of the allocated DMA buffer.
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* @param[in] low 32 bits of the physical DMA address.
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* @param[in] high 32 bits of the physical DMA address.
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*
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* @return This method returns the virtual and physical address
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* of the allocated DMA buffer.
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*/
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void sati_cb_allocate_dma_buffer(
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void * scsi_io,
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U32 length,
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void ** virt_address,
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U32 * phys_address_low,
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U32 * phys_address_high
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);
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/**
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* @brief This method frees a previously allocated DMA buffer
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to set the SCSI status.
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* @param[in] address - write buffer address being freed
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*
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* @return This method returns the address for the data received from
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* the remote device.
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*/
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void sati_cb_free_dma_buffer(
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void * scsi_io,
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void * virt_address
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);
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/**
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* @brief This method retrieves a pointer to the next scatter gather
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* list element.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* from which to retrieve the scatter gather list.
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* @param[in] ata_io This parameter specifies the user's ATA IO request
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* from which to retrieve the scatter gather list.
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* @param[in] current_sge This parameter specifies the current SG element
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* being pointed to. If retrieving the first element,
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* then this value should be NULL.
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* @param[in] next_sge This parameter is the returned SGL element
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* based on current_sge.
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*
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* @return This method returns a pointer to the scatter gather element.
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*/
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void sati_cb_sgl_next_sge(
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void * scsi_io,
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void * ata_io,
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void * current_sge,
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void ** next_sge
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);
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/**
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* @brief This method will set the next scatter-gather elements address
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* low field.
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*
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* @param[in] current_sge This parameter specifies the current SG element
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* being pointed to.
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* @param[in] address_low This parameter specifies the lower 32-bits
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* of address to be programmed into the SG element.
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* @param[in] address_high This parameter specifies the upper 32-bits
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* of address to be programmed into the SG element.
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* @param[in] length This parameter specifies the number of bytes
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* to be programmed into the SG element.
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*
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* @return none
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*/
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void sati_cb_sge_write(
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void * current_sge,
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U32 phys_address_low,
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U32 phys_address_high,
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U32 byte_length
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);
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/**
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* @brief This method will check to see if the translation requires
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* a translation response callback. Some translations need to be alerted on all
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* failures so sequence cleanup can be completed for halting the translation.
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*
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* @param[in] the current SCIC request under going translation.
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*
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* @return TRUE A response callback will be required to complete this translation sequence.
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*/
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BOOL sati_cb_do_translate_response(
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void * request
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);
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/**
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* @brief This method retrieves the SAS address for the device associated
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* with the supplied SCSI IO request. This method assumes that the
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* associated device is contained in a SAS Domain.
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*
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* @param[in] scsi_io This parameter specifies the user's SCSI IO request
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* for which to retreive the SAS address of the device.
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* @param[out] sas_address This parameter specifies the SAS address memory
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* to be contain the retrieved value.
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*
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* @return none
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*/
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void sati_cb_device_get_sas_address(
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void * scsi_io,
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SCI_SAS_ADDRESS_T * sas_address
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);
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/**
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* @brief In this method the user is expected to log the supplied
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* error information. The user must be capable of handling variable
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* length argument lists and should consider prepending the fact
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* that this is an error from the core.
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*
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* @param[in] logger_object This parameter specifies the logger object
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* associated with this message.
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* @param[in] log_object_mask This parameter specifies the log objects
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* for which this message is being generated.
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* @param[in] log_message This parameter specifies the message to be logged.
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*
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* @return none
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*/
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void sati_cb_logger_log_error(
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void * logger_object,
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U32 log_object_mask,
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char * log_message,
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...
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);
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/**
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* @brief In this method the user is expected to log the supplied warning
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* information. The user must be capable of handling variable
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* length argument lists and should consider prepending the fact
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* that this is a warning from the core.
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*
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* @param[in] logger_object This parameter specifies the logger object
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* associated with this message.
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* @param[in] log_object_mask This parameter specifies the log objects
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* for which this message is being generated.
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* @param[in] log_message This parameter specifies the message to be logged.
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*
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* @return none
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*/
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void sati_cb_logger_log_warning(
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void * logger_object,
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U32 log_object_mask,
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char * log_message,
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...
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);
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/**
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* @brief In this method the user is expected to log the supplied debug
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* information. The user must be capable of handling variable
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* length argument lists and should consider prepending the fact
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* that this is a debug message from the core.
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*
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* @param[in] logger_object This parameter specifies the logger object
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* associated with this message.
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* @param[in] log_object_mask This parameter specifies the log objects
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* for which this message is being generated.
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* @param[in] log_message This parameter specifies the message to be logged.
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*
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* @return none
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*/
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void sati_cb_logger_log_info(
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void * logger_object,
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U32 log_object_mask,
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char * log_message,
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...
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);
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/**
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* @brief In this method the user is expected to log the supplied function
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* trace information. The user must be capable of handling variable
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* length argument lists and should consider prepending the fact
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* that this is a function trace (i.e. entry/exit) message from the
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* core.
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*
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* @param[in] logger_object This parameter specifies the logger object
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* associated with this message.
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* @param[in] log_object_mask This parameter specifies the log objects
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* for which this message is being generated.
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* @param[in] log_message This parameter specifies the message to be logged.
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*
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* @return none
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*/
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void sati_cb_logger_log_trace(
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void * logger_object,
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U32 log_object_mask,
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char * log_message,
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...
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);
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#include <dev/isci/scil/sati_callbacks_implementation.h>
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#else // SATI_DEFAULT_DECLARATION
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#include <dev/isci/scil/scif_sas_sati_binding.h>
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#endif // SATI_DEFAULT_DECLARATION
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#endif // _SATI_CALLBACKS_H_
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