0f2a8452df
with clang. Also fix a number of warnings uncovered when building with clang around some implicit enum conversions. Sponsored by: Intel Approved by: scottl
266 lines
9.9 KiB
C
266 lines
9.9 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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#include <dev/isci/scil/sati.h>
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#include <dev/isci/scil/scif_sas_logger.h>
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#include <dev/isci/scil/scif_sas_task_request.h>
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#include <dev/isci/scil/scif_sas_controller.h>
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#include <dev/isci/scil/scif_sas_remote_device.h>
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#include <dev/isci/scil/scif_sas_stp_task_request.h>
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#include <dev/isci/scil/scic_task_request.h>
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#include <dev/isci/scil/scic_controller.h>
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/**
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* @brief This method provides SATA/STP STARTED state specific handling for
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* when the user attempts to complete the supplied IO request.
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* It will perform data/response translation and free NCQ tags
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* if necessary.
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*
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* @param[in] io_request This parameter specifies the IO request object
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* to be started.
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*
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* @return This method returns a value indicating if the IO request was
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* successfully completed or not.
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*/
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static
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SCI_STATUS scif_sas_stp_core_cb_task_request_complete_handler(
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SCIF_SAS_CONTROLLER_T * fw_controller,
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SCIF_SAS_REMOTE_DEVICE_T * fw_device,
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SCIF_SAS_REQUEST_T * fw_request,
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SCI_STATUS * completion_status
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)
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{
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#if !defined(DISABLE_SATI_TASK_MANAGEMENT)
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SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *) fw_request;
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SCIF_LOG_TRACE((
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sci_base_object_get_logger(fw_controller),
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SCIF_LOG_OBJECT_TASK_MANAGEMENT,
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"scif_sas_stp_core_cb_task_request_complete_handler(0x%x, 0x%x, 0x%x, 0x%x) enter\n",
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fw_controller, fw_device, fw_request, *completion_status
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));
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// Translating the response is only necessary if some sort of error
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// occurred resulting in having the error bit set in the ATA status
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// register and values to decode in the ATA error register.
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if ( (*completion_status == SCI_SUCCESS)
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|| (*completion_status == SCI_FAILURE_IO_RESPONSE_VALID) )
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{
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SATI_STATUS sati_status = sati_translate_task_response(
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&fw_task->parent.stp.sequence,
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fw_task,
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fw_task
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);
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if (sati_status == SATI_COMPLETE)
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*completion_status = SCI_SUCCESS;
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else if (sati_status == SATI_FAILURE_CHECK_RESPONSE_DATA)
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*completion_status = SCI_FAILURE_IO_RESPONSE_VALID;
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else if (sati_status == SATI_SEQUENCE_INCOMPLETE)
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{
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// The translation indicates that additional SATA requests are
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// necessary to finish the original SCSI request. As a result,
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// do not complete the IO and begin the next stage of the
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// translation.
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/// @todo multiple ATA commands are required, but not supported yet.
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return SCI_FAILURE;
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}
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else
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{
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// Something unexpected occurred during translation. Fail the
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// IO request to the user.
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*completion_status = SCI_FAILURE;
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}
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}
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else //A stp task request sometimes fails.
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{
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if (scif_sas_task_request_get_function(fw_task) == SCI_SAS_ABORT_TASK_SET)
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{
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scif_sas_stp_task_request_abort_task_set_failure_handler(
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fw_device, fw_task);
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}
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}
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return SCI_SUCCESS;
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#else // !defined(DISABLE_SATI_TASK_MANAGEMENT)
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return SCI_FAILURE;
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#endif // !defined(DISABLE_SATI_TASK_MANAGEMENT)
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}
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/**
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* @file
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*
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* @brief This file contains the method implementations for the
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* SCIF_SAS_STP_TASK_REQUEST object. The contents will implement
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* SATA/STP specific functionality.
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*/
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SCI_STATUS scif_sas_stp_task_request_construct(
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SCIF_SAS_TASK_REQUEST_T * fw_task
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)
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{
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SCI_STATUS sci_status = SCI_FAILURE;
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#if !defined(DISABLE_SATI_TASK_MANAGEMENT)
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SATI_STATUS sati_status;
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SCIF_SAS_REMOTE_DEVICE_T * fw_device = fw_task->parent.device;
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SCIF_LOG_TRACE((
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sci_base_object_get_logger(fw_task),
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SCIF_LOG_OBJECT_TASK_MANAGEMENT,
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"scif_sas_stp_task_request_construct(0x%x) enter\n",
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fw_task
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));
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// The translator will indirectly invoke core methods to set the fields
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// of the ATA register FIS inside of this method.
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sati_status = sati_translate_task_management(
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&fw_task->parent.stp.sequence,
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&fw_device->protocol_device.stp_device.sati_device,
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fw_task,
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fw_task
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);
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if (sati_status == SATI_SUCCESS)
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{
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sci_status = scic_task_request_construct_sata(fw_task->parent.core_object);
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//fw_task->parent.state_handlers = &stp_io_request_constructed_handlers;
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fw_task->parent.protocol_complete_handler =
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scif_sas_stp_core_cb_task_request_complete_handler;
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}
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else
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{
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SCIF_LOG_ERROR((
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sci_base_object_get_logger(fw_task),
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SCIF_LOG_OBJECT_TASK_MANAGEMENT,
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"Task 0x%x received unexpected SAT translation failure 0x%x\n",
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fw_task, sati_status
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));
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}
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#endif // !defined(DISABLE_SATI_TASK_MANAGEMENT)
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return sci_status;
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}
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/**
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* @brief This method provides handling for failed stp TASK MANAGEMENT
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* request.
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*
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* @param[in] fw_device This parameter specifies the target device the
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* task management request towards to.
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* @param[in] fw_request This parameter specifies the failed task management
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* request.
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* @param[in] completion_status This parameter sprecifies the completion
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* status of the task management request's core status.
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*
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* @return None.
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*/
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void scif_sas_stp_task_request_abort_task_set_failure_handler(
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SCIF_SAS_REMOTE_DEVICE_T * fw_device,
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SCIF_SAS_TASK_REQUEST_T * fw_task
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)
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{
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#if !defined(DISABLE_SATI_TASK_MANAGEMENT)
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SCIF_SAS_DOMAIN_T * fw_domain = fw_device->domain;
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SCI_FAST_LIST_ELEMENT_T * pending_request_element;
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SCIF_SAS_REQUEST_T * pending_request = NULL;
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pending_request_element = fw_domain->request_list.list_head;
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// Cycle through the list of IO requests. search all the
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// outstanding IOs with "waiting for abort task set" flag,
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// completes them now.
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while (pending_request_element != NULL)
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{
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pending_request =
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(SCIF_SAS_REQUEST_T*) sci_fast_list_get_object(pending_request_element);
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// The current element may be deleted from the list becasue of
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// IO completion so advance to the next element early
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pending_request_element = sci_fast_list_get_next(pending_request_element);
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if ( pending_request->device == fw_device
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&& pending_request->is_waiting_for_abort_task_set == TRUE )
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{
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//In case the pending_request is still in the middle of aborting.
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//abort it again to the core.
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SCI_STATUS abort_status;
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//Reset the flag now since we are process the read log ext command now.
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pending_request->is_waiting_for_abort_task_set = FALSE;
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abort_status = scic_controller_terminate_request(
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fw_domain->controller->core_object,
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fw_device->core_object,
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pending_request->core_object
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);
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if (abort_status == SCI_FAILURE_INVALID_STATE)
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{
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//the request must have not be in aborting state anymore, complete it now.
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scif_cb_io_request_complete(
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fw_domain->controller,
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fw_device,
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pending_request,
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SCI_IO_FAILURE_TERMINATED
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);
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}
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//otherwise, the abort succeeded. Since the waiting flag is cleared,
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//the pending request will be completed later.
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}
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}
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#endif //#if !defined(DISABLE_SATI_TASK_MANAGEMENT)
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}
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