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
288 lines
8.8 KiB
C
288 lines
8.8 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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*
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* @brief This file contains all of the SCIF_SAS_TASK_REQUEST object
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* state entrance and exit method implementations.
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*/
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#include <dev/isci/scil/scif_sas_task_request.h>
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//******************************************************************************
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//* P R O T E C T E D M E T H O D S
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//******************************************************************************
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/**
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* @brief This method implements the actions taken when entering the
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* INITIAL state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_initial_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_INITIAL
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);
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// Initial state is a transitional state to the constructed state
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sci_base_state_machine_change_state(
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&fw_task->parent.parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED
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);
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}
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/**
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* @brief This method implements the actions taken when entering the
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* CONSTRUCTED state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_constructed_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_CONSTRUCTED
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);
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}
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/**
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* @brief This method implements the actions taken when entering the
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* STARTED state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_started_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_STARTED
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);
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// Increment the affected request count to include the task performing
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// the task management to ensure we don't complete the task request until
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// all terminations and the task itself have completed.
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fw_task->affected_request_count++;
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}
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/**
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* @brief This method implements the actions taken when entering the
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* COMPLETED state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_completed_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_COMPLETED
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);
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// Check to see if the task management operation is now finished (i.e.
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// all of the task terminations and the task management request are
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// complete).
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scif_sas_task_request_operation_complete(fw_task);
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}
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/**
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* @brief This method implements the actions taken when entering the
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* ABORTING state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_aborting_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_ABORTING
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);
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/// @todo Is terminating a previously outstanding task request right?
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fw_task->parent.status = scif_sas_request_terminate_start(
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&fw_task->parent, fw_task->parent.core_object
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);
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}
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/**
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* @brief This method implements the actions taken when exiting the
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* ABORTING state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_aborting_state_exit(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T *)object;
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scif_sas_request_terminate_complete(fw_request);
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}
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/**
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* @brief This method implements the actions taken when entering the
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* FINAL state.
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*
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* @param[in] object This parameter specifies the base object for which
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* the state transition is occurring. This is cast into a
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* SCIF_SAS_TASK_REQUEST object in the method implementation.
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*
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* @return none
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*/
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static
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void scif_sas_task_request_final_state_enter(
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SCI_BASE_OBJECT_T *object
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)
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{
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
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SET_STATE_HANDLER(
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&fw_task->parent,
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scif_sas_task_request_state_handler_table,
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SCI_BASE_REQUEST_STATE_FINAL
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);
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}
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SCI_BASE_STATE_T
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scif_sas_task_request_state_table[SCI_BASE_REQUEST_MAX_STATES] =
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{
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{
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SCI_BASE_REQUEST_STATE_INITIAL,
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scif_sas_task_request_initial_state_enter,
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NULL
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},
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{
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SCI_BASE_REQUEST_STATE_CONSTRUCTED,
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scif_sas_task_request_constructed_state_enter,
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NULL
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},
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{
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SCI_BASE_REQUEST_STATE_STARTED,
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scif_sas_task_request_started_state_enter,
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NULL
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},
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{
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SCI_BASE_REQUEST_STATE_COMPLETED,
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scif_sas_task_request_completed_state_enter,
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NULL
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},
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{
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SCI_BASE_REQUEST_STATE_ABORTING,
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scif_sas_task_request_aborting_state_enter,
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scif_sas_task_request_aborting_state_exit
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},
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{
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SCI_BASE_REQUEST_STATE_FINAL,
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scif_sas_task_request_final_state_enter,
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NULL
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},
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};
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