310 lines
9.8 KiB
C
310 lines
9.8 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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* $FreeBSD$
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*/
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#ifndef _SCI_BASE_DOMAIN_H_
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#define _SCI_BASE_DOMAIN_H_
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/**
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* @file
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*
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* @brief This file contains all of the structures, constants, and methods
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* common to all domain object definitions.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include <dev/isci/scil/sci_base_object.h>
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#include <dev/isci/scil/sci_base_logger.h>
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#include <dev/isci/scil/sci_base_state_machine.h>
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#include <dev/isci/scil/sci_base_state_machine_logger.h>
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/**
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* @enum SCI_BASE_DOMAIN_STATES
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*
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* @brief This enumeration depicts the standard states common to all domain
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* state machine implementations.
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*/
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typedef enum _SCI_BASE_DOMAIN_STATES
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{
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/**
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* Simply the initial state for the base domain state machine.
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*/
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SCI_BASE_DOMAIN_STATE_INITIAL,
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/**
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* This state indicates that the domain has successfully been stopped.
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* In this state no new IO operations are permitted.
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* This state is entered from the INITIAL state.
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* This state is entered from the DISCOVERING state.
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*/
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SCI_BASE_DOMAIN_STATE_STARTING,
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/**
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* This state indicates the domain is now ready. Thus, the user
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* is able to perform IO operations to remote devices in this domain.
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* This state is entered from the STOPPED state.
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* This state is entered from the STOPPING state.
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* This state is entered from the DISCOVERING state.
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*/
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SCI_BASE_DOMAIN_STATE_READY,
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/**
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* This state indicates that the domain is in the process of stopping.
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* In this state no new IO operations are permitted, but existing IO
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* operations in the domain are allowed to complete.
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* This state is entered from the READY state.
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* This state is entered from the DISCOVERING state.
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*/
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SCI_BASE_DOMAIN_STATE_STOPPING,
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/**
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* This state indicates that the domain has successfully been stopped.
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* In this state no new IO operations are permitted.
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* This state is entered from the INITIAL state.
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* This state is entered from the STOPPING state.
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*/
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SCI_BASE_DOMAIN_STATE_STOPPED,
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/**
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* This state indicates that the domain is actively attempting to
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* discover what remote devices are contained in it. In this state no
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* new user IO requests are permitted.
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* This state is entered from the READY state.
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*/
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SCI_BASE_DOMAIN_STATE_DISCOVERING,
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SCI_BASE_DOMAIN_MAX_STATES
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} SCI_BASE_DOMAIN_STATES;
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/**
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* @struct SCI_BASE_DOMAIN
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*
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* @brief This structure defines all of the fields common to DOMAIN objects.
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*/
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typedef struct SCI_BASE_DOMAIN
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{
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/**
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* This field depicts the parent object (SCI_BASE_OBJECT) for the domain.
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*/
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SCI_BASE_OBJECT_T parent;
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/**
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* This field contains the information for the base domain state machine.
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*/
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SCI_BASE_STATE_MACHINE_T state_machine;
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#ifdef SCI_LOGGING
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SCI_BASE_STATE_MACHINE_LOGGER_T state_machine_logger;
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#endif // SCI_LOGGING
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} SCI_BASE_DOMAIN_T;
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struct SCI_BASE_CONTROLLER;
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struct SCI_BASE_REMOTE_DEVICE;
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struct SCI_BASE_REQUEST;
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struct SCI_BASE_REQUEST;
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_TIMED_HANDLER_T)(
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SCI_BASE_DOMAIN_T *,
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U32,
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U32
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);
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_HANDLER_T)(
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SCI_BASE_DOMAIN_T *
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);
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_PORT_NOT_READY_HANDLER_T)(
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SCI_BASE_DOMAIN_T *,
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U32
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);
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_DEVICE_HANDLER_T)(
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SCI_BASE_DOMAIN_T *,
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struct SCI_BASE_REMOTE_DEVICE *
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);
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_REQUEST_HANDLER_T)(
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SCI_BASE_DOMAIN_T *,
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struct SCI_BASE_REMOTE_DEVICE *,
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struct SCI_BASE_REQUEST *
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);
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typedef SCI_STATUS (*SCI_BASE_DOMAIN_HIGH_PRIORITY_REQUEST_COMPLETE_HANDLER_T)(
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SCI_BASE_DOMAIN_T *,
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struct SCI_BASE_REMOTE_DEVICE *,
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struct SCI_BASE_REQUEST *,
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void *,
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SCI_IO_STATUS
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);
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/**
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* @struct SCI_BASE_DOMAIN_STATE_HANDLER
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*
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* @brief This structure contains all of the state handler methods common to
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* base domain state machines. Handler methods provide the ability
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* to change the behavior for user requests or transitions depending
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* on the state the machine is in.
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*/
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typedef struct SCI_BASE_DOMAIN_STATE_HANDLER
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{
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/**
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* The discover_handler specifies the method invoked when a user attempts
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* to discover a domain.
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*/
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SCI_BASE_DOMAIN_TIMED_HANDLER_T discover_handler;
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/**
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* The port_ready_handler specifies the method invoked an SCI Core
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* informs the domain object that it's associated port is now ready
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* for IO operation.
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*/
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SCI_BASE_DOMAIN_HANDLER_T port_ready_handler;
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/**
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* The port_not_ready_handler specifies the method invoked an SCI Core
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* informs the domain object that it's associated port is no longer ready
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* for IO operation.
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*/
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SCI_BASE_DOMAIN_PORT_NOT_READY_HANDLER_T port_not_ready_handler;
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/**
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* The device_start_complete_handler specifies the method invoked when a
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* remote device start operation in the domain completes.
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*/
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SCI_BASE_DOMAIN_DEVICE_HANDLER_T device_start_complete_handler;
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/**
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* The device_stop_complete_handler specifies the method invoked when a
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* remote device stop operation in the domain completes.
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*/
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SCI_BASE_DOMAIN_DEVICE_HANDLER_T device_stop_complete_handler;
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/**
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* The device_destruct_handler specifies the method invoked when sci user
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* destruct a remote device of this domain.
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*/
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SCI_BASE_DOMAIN_DEVICE_HANDLER_T device_destruct_handler;
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/**
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* The start_io_handler specifies the method invoked when a user
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* attempts to start an IO request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T start_io_handler;
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/**
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* The start_high_priority_io_handler specifies the method invoked when a user
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* attempts to start an high priority request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T start_high_priority_io_handler;
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/**
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* The complete_io_handler specifies the method invoked when a user
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* attempts to complete an IO request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T complete_io_handler;
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/**
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* The complete_high_priority_io_handler specifies the method invoked when a
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* user attempts to complete an high priority IO request for a domain.
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*/
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SCI_BASE_DOMAIN_HIGH_PRIORITY_REQUEST_COMPLETE_HANDLER_T complete_high_priority_io_handler;
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/**
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* The continue_io_handler specifies the method invoked when a user
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* attempts to continue an IO request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T continue_io_handler;
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/**
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* The start_task_handler specifies the method invoked when a user
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* attempts to start a task management request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T start_task_handler;
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/**
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* The complete_task_handler specifies the method invoked when a user
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* attempts to complete a task management request for a domain.
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*/
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SCI_BASE_DOMAIN_REQUEST_HANDLER_T complete_task_handler;
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} SCI_BASE_DOMAIN_STATE_HANDLER_T;
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/**
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* @brief Construct the base domain
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*
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* @param[in] this_domain This parameter specifies the base domain to be
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* constructed.
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* @param[in] logger This parameter specifies the logger associated with
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* this base domain object.
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* @param[in] state_table This parameter specifies the table of state
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* definitions to be utilized for the domain state machine.
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*
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* @return none
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*/
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void sci_base_domain_construct(
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SCI_BASE_DOMAIN_T * this_domain,
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SCI_BASE_LOGGER_T * logger,
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SCI_BASE_STATE_T * state_table
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);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _SCI_BASE_DOMAIN_H_
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