/*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * BSD LICENSE * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SCIF_REMOTE_DEVICE_H_ #define _SCIF_REMOTE_DEVICE_H_ /** * @file * * @brief This file contains all of the interface methods that can be called * by an SCI Framework user on a remote device object. The * framework remote device object provides management of resets for * the remote device, IO thresholds, potentially NCQ tag management, * etc. */ #ifdef __cplusplus extern "C" { #endif // __cplusplus #include #include #include /** * This constant is utilized to inform the user that there is no defined * maximum request queue depth associated with a remote device. */ #define SCIF_REMOTE_DEVICE_NO_MAX_QUEUE_DEPTH 0xFFFF /** * @brief This method simply returns the maximum memory space needed to * store a remote device object. The value returned includes enough * space for the framework and core device objects. * * @return a positive integer value indicating the size (in bytes) of the * remote device object. */ U32 scif_remote_device_get_object_size( void ); /** * @brief This method performs the construction common to all device object * types in the framework. * * @note * - Remote device objects in the core are a limited resource. Since * the framework construction/destruction methods wrap the core, the * user must ensure that a construct or destruct method is never * invoked when an existing construct or destruct method is ongoing. * This method shall be utilized for discovered direct attached * devices. * - It isn't necessary to call scif_remote_device_destruct() for * device objects that have only called this method for construction. * Once subsequent construction methods have been invoked (e.g. * scif_remote_device_da_construct()), then destruction should occur. * * @param[in] domain This parameter specifies the domain in which this * remote device is contained. * @param[in] remote_device_memory This parameter specifies the memory * location into which this method shall construct the new * framework device object. * @param[out] new_scif_remote_device_handle This parameter specifies the * handle to be used to communicate with the newly constructed * framework remote device. * * @return none */ void scif_remote_device_construct( SCI_DOMAIN_HANDLE_T domain, void * remote_device_memory, SCI_REMOTE_DEVICE_HANDLE_T * new_scif_remote_device_handle ); /** * @brief This method constructs a new framework remote device object. The * remote device object shall remember it's counterpart core device * object as well as the domain in which it is contained. * * @note Remote device objects in the core are a limited resource. Since * the framework construction/destruction methods wrap the core, the * user must ensure that a construct or destruct method is never * invoked when an existing construct or destruct method is ongoing. * This method shall be utilized for discovered direct attached * devices. * * @pre The user must have previously called scif_remote_device_construct() * * @param[in] remote_device This parameter specifies the framework device * for which to perform direct attached specific construction. * @param[in] sas_address This parameter specifies the SAS address of the * remote device object being constructed. * @param[in] protocols This parameter specifies the protocols supported * by the remote device to be constructed. * * @return Indicate if the remote device was successfully constructed. * @retval SCI_SUCCESS This value is returned if the remote device was * successfully constructed. * @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already * been constructed. * @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if * the core controller associated with the supplied parameters * is unable to support additional remote devices. */ SCI_STATUS scif_remote_device_da_construct( SCI_REMOTE_DEVICE_HANDLE_T remote_device, SCI_SAS_ADDRESS_T * sas_address, SCI_SAS_IDENTIFY_ADDRESS_FRAME_PROTOCOLS_T * protocols ); /** * @brief This method constructs a new framework remote device object. The * remote device object shall remember it's counterpart core device * object as well as the domain in which it is contained. * * @pre The user must have previously called scif_remote_device_construct() * * @note Remote device objects in the core are a limited resource. Since * the framework construction/destruction methods wrap the core, the * user must ensure that a construct or destruct method is never * invoked when an existing construct or destruct method is ongoing. * This method shall be utilized for discovered expander attached * devices. * * @param[in] remote_device This parameter specifies the framework device * for which to perform expander specific construction. * @param[in] containing_device This parameter specifies the remote * device (i.e. an expander) that contains the device being * constructed. * @param[in] smp_response This parameter specifies the SMP_RESPONSE_DISCOVER * associated with the remote device being constructed. * * @return Indicate if the remote device was successfully constructed. * @retval SCI_SUCCESS This value is returned if the remote device was * successfully constructed. * @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already * been constructed. * @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if * the core controller associated with the supplied parameters * is unable to support additional remote devices. */ SCI_STATUS scif_remote_device_ea_construct( SCI_REMOTE_DEVICE_HANDLE_T remote_device, SCI_REMOTE_DEVICE_HANDLE_T containing_device, SMP_RESPONSE_DISCOVER_T * smp_response ); /** * @brief This method is utilized to free up a framework's remote * device object. * * @note Remote device objects in the core are a limited resource. Since * the framework construction/destruction methods wrap the core, the * user must ensure that a construct or destruct method is never * invoked when an existing construct or destruct method is ongoing. * * @param[in] remote_device This parameter specifies the remote device to be * destructed. * * @return The return value shall indicate if the device was successfully * destructed or if some failure occurred. * @retval SCI_STATUS This value is returned if the device is successfully * destructed. * @retval SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the * supplied device isn't valid (e.g. it's already been destructed, * the handle isn't valid, etc.). */ SCI_STATUS scif_remote_device_destruct( SCI_REMOTE_DEVICE_HANDLE_T remote_device ); /** * @brief This method simply returns the SCI Core object handle that is * associated with the supplied SCI Framework object. * * @param[in] remote_device This parameter specifies the framework device * for which to return the associated core remote device. * * @return This method returns a handle to the core remote device object * associated with the framework remote device object. * @retval SCI_INVALID_HANDLE This return value indicates that the SCI Core * remote device handle for the supplied framework device is invalid. */ SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device_get_scic_handle( SCI_REMOTE_DEVICE_HANDLE_T remote_device ); /** * @brief This method returns the maximum queue depth supported for the * supplied target by this SCI Framework impementation. * * @param[in] remote_device This parameter specifies the framework * device for which to return the maximum queue depth. * * @return This method returns a value indicating the maximum number of * IO requests that can be outstanding for the target at any * point in time. * @retval SCIF_REMOTE_DEVICE_NO_MAX_QUEUE_DEPTH This value is returned * when there is no defined maximum queue depth for the target. */ U16 scif_remote_device_get_max_queue_depth( SCI_REMOTE_DEVICE_HANDLE_T remote_device ); /** * @brief This method will return the handle to the parent device of the * remote device. * * @param[in] remote_device This parameter specifies the device for which * to return the parent device. * @param[out] containing_device This parameter specifies the device * handle, from the remote device object, which indicate * the parent device of the supplied remote_device. * * @return none */ SCI_STATUS scif_remote_device_get_containing_device( SCI_REMOTE_DEVICE_HANDLE_T remote_device, SCI_REMOTE_DEVICE_HANDLE_T * containing_device ); /** * @brief This method returns the number of IO currently started * to the supplied target. It does not include task * management requests. * * @param[in] remote_device This parameter specifies the framework * device for which to return the number of started IO. * * @return This method returns a value indicating the number of started * IO requests. */ U32 scif_remote_device_get_started_io_count( SCI_REMOTE_DEVICE_HANDLE_T remote_device ); #ifdef __cplusplus } #endif // __cplusplus #endif // _SCIF_REMOTE_DEVICE_H_