diff options
Diffstat (limited to 'sys/dev/isci/scil/scif_sas_request.c')
| -rw-r--r-- | sys/dev/isci/scil/scif_sas_request.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/sys/dev/isci/scil/scif_sas_request.c b/sys/dev/isci/scil/scif_sas_request.c new file mode 100644 index 0000000..9c7d62e --- /dev/null +++ b/sys/dev/isci/scil/scif_sas_request.c @@ -0,0 +1,183 @@ +/*- + * 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/** + * @file + * + * @brief This file contains the implementation of the SCIF_SAS_REQUEST + * object. The SCIF_SAS_REQUEST object provides data and methods + * that are common to both IO requests and task management requests. + */ + + +#include <dev/isci/scil/scic_controller.h> + +#include <dev/isci/scil/scif_sas_request.h> +#include <dev/isci/scil/scif_sas_task_request.h> +#include <dev/isci/scil/scif_sas_controller.h> +#include <dev/isci/scil/scif_sas_domain.h> +#include <dev/isci/scil/scif_sas_remote_device.h> + +#include <dev/isci/scil/scif_sas_logger.h> + +//****************************************************************************** +//* P R O T E C T E D M E T H O D S +//****************************************************************************** + +/** + * @brief This method constructs the SCIF_SAS_REQUEST object. + * + * @param[in] fw_request This parameter specifies the request object to + * be constructed. + * @param[in] fw_device This parameter specifies the remote device object + * to which this request is destined. + * @param[in] logger This parameter specifies the logger associated with + * this base request object. + * @param[in] state_table This parameter specifies the table of state + * definitions to be utilized for the request state machine. + * + * @return none + */ +void scif_sas_request_construct( + SCIF_SAS_REQUEST_T * fw_request, + SCIF_SAS_REMOTE_DEVICE_T * fw_device, + SCI_BASE_LOGGER_T * logger, + SCI_BASE_STATE_T * state_table +) +{ + sci_base_request_construct(&fw_request->parent, logger, state_table); + + SCIF_LOG_TRACE(( + sci_base_object_get_logger(fw_request), + SCIF_LOG_OBJECT_TASK_MANAGEMENT, + "scif_sas_request_construct(0x%x, 0x%x, 0x%x, 0x%x) enter\n", + fw_request, fw_device, logger, state_table + )); + + fw_request->device = fw_device; + fw_request->is_internal = FALSE; + fw_request->lun = 0; + fw_request->terminate_requestor = NULL; + fw_request->protocol_complete_handler = NULL; + fw_request->is_high_priority = FALSE; + fw_request->is_waiting_for_abort_task_set = FALSE; + + sci_fast_list_element_init(fw_request, &fw_request->list_element); +} + +/** + * @brief This method will request the SCI core to terminate the supplied + * request. + * + * @param[in] fw_request This parameter specifies the request to be terminated. + * @param[in] core_request This parameter specifies the core request (IO or + * task) to be terminated. + * + * @return This method returns the status of the core termination operation. + */ +SCI_STATUS scif_sas_request_terminate_start( + SCIF_SAS_REQUEST_T * fw_request, + SCI_IO_REQUEST_HANDLE_T core_request +) +{ + SCIF_LOG_TRACE(( + sci_base_object_get_logger(fw_request), + SCIF_LOG_OBJECT_TASK_MANAGEMENT, + "scif_sas_request_terminate_start(0x%x) enter\n", + fw_request + )); + + // Only increment the affected request count if this request is being + // terminated at the behest of a task management request. + if (fw_request->terminate_requestor != NULL) + fw_request->terminate_requestor->affected_request_count++; + + return scic_controller_terminate_request( + fw_request->device->domain->controller->core_object, + fw_request->device->core_object, + core_request + ); +} + +/** + * @brief This method will perform termination completion processing for + * the supplied request. This includes updated the affected + * request count, if a task management request is what generated + * this termination. Also, this method will attempt to transition + * to the READY OPERATIONAL state if this represents the last + * affected request. + * + * @param[in] fw_request This parameter specifies the request for which to + * perform termination completion processing. + * + * @return none + */ +void scif_sas_request_terminate_complete( + SCIF_SAS_REQUEST_T * fw_request +) +{ + SCIF_LOG_TRACE(( + sci_base_object_get_logger(fw_request), + SCIF_LOG_OBJECT_TASK_MANAGEMENT, + "scif_sas_request_terminate_complete(0x%x) enter\n", + fw_request + )); + + // For requests that were terminated due to a task management request, + // check to see if the task management request has completed. + if (fw_request->terminate_requestor != NULL) + scif_sas_task_request_operation_complete(fw_request->terminate_requestor); +} + |
