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Diffstat (limited to 'drivers/scsi/isci/ssp_request.c')
| -rw-r--r-- | drivers/scsi/isci/ssp_request.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/drivers/scsi/isci/ssp_request.c b/drivers/scsi/isci/ssp_request.c deleted file mode 100644 index 4b6317aeef7d..000000000000 --- a/drivers/scsi/isci/ssp_request.c +++ /dev/null @@ -1,240 +0,0 @@ -/* - * 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. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * 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 "host.h" -#include "request.h" -#include "state_machine.h" -#include "scu_task_context.h" -#include "scu_completion_codes.h" - -/** - * This method processes the completions transport layer (TL) status to - * determine if the RAW task management frame was sent successfully. If the - * raw frame was sent successfully, then the state for the task request - * transitions to waiting for a response frame. - * @sci_req: This parameter specifies the request for which the TC - * completion was received. - * @completion_code: This parameter indicates the completion status information - * for the TC. - * - * Indicate if the tc completion handler was successful. SCI_SUCCESS currently - * this method always returns success. - */ -static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) -{ - switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS - ); - - sci_base_state_machine_change_state( - &sci_req->started_substate_machine, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE - ); - break; - - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): - /* - * Currently, the decision is to simply allow the task request to - * timeout if the task IU wasn't received successfully. - * There is a potential for receiving multiple task responses if we - * decide to send the task IU again. */ - dev_warn(scic_to_dev(sci_req->owning_controller), - "%s: TaskRequest:0x%p CompletionCode:%x - " - "ACK/NAK timeout\n", - __func__, - sci_req, - completion_code); - - sci_base_state_machine_change_state( - &sci_req->started_substate_machine, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE - ); - break; - - default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); - - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - break; - } - - return SCI_SUCCESS; -} - -/** - * This method is responsible for processing a terminate/abort request for this - * TC while the request is waiting for the task management response - * unsolicited frame. - * @sci_req: This parameter specifies the request for which the - * termination was requested. - * - * This method returns an indication as to whether the abort request was - * successfully handled. need to update to ensure the received UF doesn't cause - * damage to subsequent requests (i.e. put the extended tag in a holding - * pattern for this particular device). - */ -static enum sci_status scic_sds_ssp_task_request_await_tc_response_abort_handler( - struct scic_sds_request *request) -{ - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_ABORTING); - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - return SCI_SUCCESS; -} - -/** - * This method processes an unsolicited frame while the task mgmt request is - * waiting for a response frame. It will copy the response data, release - * the unsolicited frame, and transition the request to the - * SCI_BASE_REQUEST_STATE_COMPLETED state. - * @sci_req: This parameter specifies the request for which the - * unsolicited frame was received. - * @frame_index: This parameter indicates the unsolicited frame index that - * should contain the response. - * - * This method returns an indication of whether the TC response frame was - * handled successfully or not. SCI_SUCCESS Currently this value is always - * returned and indicates successful processing of the TC response. Should - * probably update to check frame type and make sure it is a response frame. - */ -static enum sci_status scic_sds_ssp_task_request_await_tc_response_frame_handler( - struct scic_sds_request *request, - u32 frame_index) -{ - scic_sds_io_request_copy_response(request); - - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - scic_sds_controller_release_frame(request->owning_controller, - frame_index); - return SCI_SUCCESS; -} - -static const struct scic_sds_io_request_state_handler scic_sds_ssp_task_request_started_substate_handler_table[] = { - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { - .abort_handler = scic_sds_request_started_state_abort_handler, - .tc_completion_handler = scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler, - }, - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = { - .abort_handler = scic_sds_ssp_task_request_await_tc_response_abort_handler, - .frame_handler = scic_sds_ssp_task_request_await_tc_response_frame_handler, - } -}; - -/** - * This method performs the actions required when entering the - * SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION - * sub-state. This includes setting the IO request state handlers for this - * sub-state. - * @object: This parameter specifies the request object for which the sub-state - * change is occurring. - * - * none. - */ -static void scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter( - void *object) -{ - struct scic_sds_request *sci_req = object; - - SET_STATE_HANDLER( - sci_req, - scic_sds_ssp_task_request_started_substate_handler_table, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION - ); -} - -/** - * This method performs the actions required when entering the - * SCIC_SDS_IO_REQUEST_STARTED_SUBSTATE_AWAIT_TC_RESPONSE sub-state. This - * includes setting the IO request state handlers for this sub-state. - * @object: This parameter specifies the request object for which the sub-state - * change is occurring. - * - * none. - */ -static void scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter( - void *object) -{ - struct scic_sds_request *sci_req = object; - - SET_STATE_HANDLER( - sci_req, - scic_sds_ssp_task_request_started_substate_handler_table, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE - ); -} - -const struct sci_base_state scic_sds_io_request_started_task_mgmt_substate_table[] = { - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { - .enter_state = scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter, - }, - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = { - .enter_state = scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter, - }, -}; - |